What is Bonsai?
Bonsai is a Japanese art form using cultivation techniques to produce, in containers, small trees that mimic the shape and scale of full size trees. Similar practices exist in other cultures, including the Chinese tradition of penzai or penjing from which the art originated, and the miniature living landscapes of Vietnamese Hòn Non Bộ. The Japanese tradition dates back over a thousand years.
Purposes of bonsai are primarily contemplation for the viewer, and the pleasant exercise of effort and ingenuity for the grower. By contrast with other plant cultivation practices, bonsai is not intended for production of food or for medicine. Instead, bonsai practice focuses on long-term cultivation and shaping of one or more small trees growing in a container.
Bonsai is a Japanese art form using cultivation techniques to produce, in containers, small trees that mimic the shape and scale of full size trees. Similar practices exist in other cultures, including the Chinese tradition of penzai or penjing from which the art originated, and the miniature living landscapes of Vietnamese Hòn Non Bộ. The Japanese tradition dates back over a thousand years.
Purposes of bonsai are primarily contemplation for the viewer, and the pleasant exercise of effort and ingenuity for the grower. By contrast with other plant cultivation practices, bonsai is not intended for production of food or for medicine. Instead, bonsai practice focuses on long-term cultivation and shaping of one or more small trees growing in a container.
What is Hydrogen/Methane breath Test?
The hydrogen/methane breath test is a test that uses the measurement of hydrogen in the breath to diagnose several conditions that cause gastrointestinal symptoms. Large amounts of hydrogen may be produced where there is a problem with the digestion or absorption of food in the small intestine that allows more unabsorbed food to reach the colon or when the colon bacteria move back into the small intestine. Some of the hydrogen produced by the bacteria, whether in the small intestine or the colon, is absorbed into the blood flowing through the wall of the small intestine and colon. The hydrogen-containing blood travels to the lungs where the hydrogen is released and exhaled in the breath where it can be measured.
The hydrogen/methane breath test is a test that uses the measurement of hydrogen in the breath to diagnose several conditions that cause gastrointestinal symptoms. Large amounts of hydrogen may be produced where there is a problem with the digestion or absorption of food in the small intestine that allows more unabsorbed food to reach the colon or when the colon bacteria move back into the small intestine. Some of the hydrogen produced by the bacteria, whether in the small intestine or the colon, is absorbed into the blood flowing through the wall of the small intestine and colon. The hydrogen-containing blood travels to the lungs where the hydrogen is released and exhaled in the breath where it can be measured.
What is Bulletproof Jacket made of?
Bulletproof vests are modern light armor specifically designed to protect the wearer's vital organs from injury caused by firearm projectiles. To many protective armor manufacturers and wearers, the term "Bulletproof Vest" is a misnomer. Because the wearer is not totally safe from the impact of a bullet, the preferred term for the article is "Bullet Resistant Vest."
A Bulletproof vest consists of a panel, a vest-shaped sheet of advanced plastics polymers that is composed of many layers of either Kevlar, Spectra Shield, or, in other countries, Twaron (similar to Kevlar) or Bynema (similar to Spectra). Such vests can also provide protection in car accidents or from stabbing.
Bulletproof vests are modern light armor specifically designed to protect the wearer's vital organs from injury caused by firearm projectiles. To many protective armor manufacturers and wearers, the term "Bulletproof Vest" is a misnomer. Because the wearer is not totally safe from the impact of a bullet, the preferred term for the article is "Bullet Resistant Vest."
A Bulletproof vest consists of a panel, a vest-shaped sheet of advanced plastics polymers that is composed of many layers of either Kevlar, Spectra Shield, or, in other countries, Twaron (similar to Kevlar) or Bynema (similar to Spectra). Such vests can also provide protection in car accidents or from stabbing.
What is TestTube Baby?
In a normal pregnancy, a male sperm penetrates a woman's egg and fertilizes it inside her body after ovulation, when a mature egg has been released from the ovaries.
The fertilized egg then attaches itself to the wall of the uterus, or womb, and begins developing into a baby. This is known as natural conception.
However, if natural or unassisted conception is not possible, fertility treatment is an option.
IVF has been used since the late 1970s. On 25 July 1978, the first "test-tube baby," Louise Brown, was born. Robert Edwards and Patrick Steptoe, who collaborated on the procedure, are considered to be the pioneers of IVF.
It involves fertilizing an egg outside the body, in a laboratory dish, and then implanting it in a woman's uterus.
By 2016, some 6.5 million babies had been born using in-vitro fertilization (IVF). According to the Centers for Disease Control and Prevention (CDC), around 1.6 percent of babies born in the United States each year are conceived through assisted repr
In a normal pregnancy, a male sperm penetrates a woman's egg and fertilizes it inside her body after ovulation, when a mature egg has been released from the ovaries.
The fertilized egg then attaches itself to the wall of the uterus, or womb, and begins developing into a baby. This is known as natural conception.
However, if natural or unassisted conception is not possible, fertility treatment is an option.
IVF has been used since the late 1970s. On 25 July 1978, the first "test-tube baby," Louise Brown, was born. Robert Edwards and Patrick Steptoe, who collaborated on the procedure, are considered to be the pioneers of IVF.
It involves fertilizing an egg outside the body, in a laboratory dish, and then implanting it in a woman's uterus.
By 2016, some 6.5 million babies had been born using in-vitro fertilization (IVF). According to the Centers for Disease Control and Prevention (CDC), around 1.6 percent of babies born in the United States each year are conceived through assisted repr
What causes skin to wrinkle with age?
The skin is made up of three layers:
The outermost layer which everyone can see, called the Epidermis.
The middle layer, called the Dermis.
The innermost layer, called the Subcutaneous layer.
When we're young, we don't have wrinkles because the Skin does a great job of stretching and holding in moisture. The dermis has an elastic quality thanks to fibers called Elastin that keep the skin looking and feeling young. A protein in the dermis called Collagen also plays a part in preventing wrinkles.
But over time, the dermis loses both collagen and elastin, so skin gets thinner and has trouble getting enough moisture to the epidermis. The fat in the subcutaneous layer that gives skin a plump appearance also begins to disappear, the epidermis starts to Sag, and wrinkles form.
The skin is made up of three layers:
The outermost layer which everyone can see, called the Epidermis.
The middle layer, called the Dermis.
The innermost layer, called the Subcutaneous layer.
When we're young, we don't have wrinkles because the Skin does a great job of stretching and holding in moisture. The dermis has an elastic quality thanks to fibers called Elastin that keep the skin looking and feeling young. A protein in the dermis called Collagen also plays a part in preventing wrinkles.
But over time, the dermis loses both collagen and elastin, so skin gets thinner and has trouble getting enough moisture to the epidermis. The fat in the subcutaneous layer that gives skin a plump appearance also begins to disappear, the epidermis starts to Sag, and wrinkles form.
Nuclear Chemistry Basics Explained
Table of Contents
Atomic number (Z)
Mass number (A)
Isotopes
Isobars
Allotropes
Radioactivity
Alpha Radiation
Beta Radiation
Gamma Radiation
Nuclear reactions
Nuclear Fission
Nuclear Fusion
Atomic number (Z)
Atomic number is the number of protons or electrons present in an atom (for every atom, the number of proton and electron are same).
Eg: Nitrogen (N) = 7, Calcium (Ca) = 20, Oxygen (O) = 8.
Mass number (A)
Mass number is the sum of protons and neutrons present in an atom (or it is the sum of electron and neutron present in an atom.)
Eg: Nitrogen (N) = 14, Calcium (Ca) = 40, Oxygen (O) = 16
Isotopes
Elements having same atomic number but different mass number are called isotopes.
Eg: Protium, Deuterium, Tritium.
Isobars
Elements having same mass number but different atomic numbers are called isobars.
Eg: 40S, 40Cl, 40Ar, 40K, and 40Ca.
Allotropes
Different forms of a single element are called allotropes.
Eg: Diamond and graphite are two allotropes of carbon; ie. pure forms of the same element that differ in crystalline structure.
Radioactivity
Unstable atomic nuclei will spontaneously decompose to form nuclei with a higher stability. The decomposition process is called radioactivity. Energy and particles released during the decomposition process are called radiation.
There are three major types of natural radioactivity : alpha, beta and gamma radiation.
Alpha Radiation
23892U → 42He + 23490Th.
The helium nucleus is the alpha particle.
Beta Radiation
23490 → 0-1e + 23491Pa.
The electron is the Beta particle.
Gamma Radiation
Gamma rays are high-energy photons with a very short wavelength. Gamma emission changes neither the atomic number nor the atomic mass.
Nuclear reactions
Nuclear reactions are mainly two types :
Nuclear fission.
Nuclear fusion.
Nuclear Fission
Nuclear fission takes place when an atom’s nucleus splits into two or more smaller nuclei. These smaller nuclei are called fission products. Particles (e.g., neutrons, photons, alpha particles) may also be released along fission.
Example:
23592U + 10n → 9038Sr + 14354Xe + 310n.
Nuclear Fusion
Nuclear fusion is a process in which atomic nuclei are fused together to form heavier nuclei. Large amounts of energy are released when fusion occurs.The reactions which take place inside the sun is an example of nuclear fusion.
Examples:
11H + 21H → 32He.
32He + 32He → 42He + 211H.
11H + 11H → 21H + 0+1β.
Table of Contents
Atomic number (Z)
Mass number (A)
Isotopes
Isobars
Allotropes
Radioactivity
Alpha Radiation
Beta Radiation
Gamma Radiation
Nuclear reactions
Nuclear Fission
Nuclear Fusion
Atomic number (Z)
Atomic number is the number of protons or electrons present in an atom (for every atom, the number of proton and electron are same).
Eg: Nitrogen (N) = 7, Calcium (Ca) = 20, Oxygen (O) = 8.
Mass number (A)
Mass number is the sum of protons and neutrons present in an atom (or it is the sum of electron and neutron present in an atom.)
Eg: Nitrogen (N) = 14, Calcium (Ca) = 40, Oxygen (O) = 16
Isotopes
Elements having same atomic number but different mass number are called isotopes.
Eg: Protium, Deuterium, Tritium.
Isobars
Elements having same mass number but different atomic numbers are called isobars.
Eg: 40S, 40Cl, 40Ar, 40K, and 40Ca.
Allotropes
Different forms of a single element are called allotropes.
Eg: Diamond and graphite are two allotropes of carbon; ie. pure forms of the same element that differ in crystalline structure.
Radioactivity
Unstable atomic nuclei will spontaneously decompose to form nuclei with a higher stability. The decomposition process is called radioactivity. Energy and particles released during the decomposition process are called radiation.
There are three major types of natural radioactivity : alpha, beta and gamma radiation.
Alpha Radiation
23892U → 42He + 23490Th.
The helium nucleus is the alpha particle.
Beta Radiation
23490 → 0-1e + 23491Pa.
The electron is the Beta particle.
Gamma Radiation
Gamma rays are high-energy photons with a very short wavelength. Gamma emission changes neither the atomic number nor the atomic mass.
Nuclear reactions
Nuclear reactions are mainly two types :
Nuclear fission.
Nuclear fusion.
Nuclear Fission
Nuclear fission takes place when an atom’s nucleus splits into two or more smaller nuclei. These smaller nuclei are called fission products. Particles (e.g., neutrons, photons, alpha particles) may also be released along fission.
Example:
23592U + 10n → 9038Sr + 14354Xe + 310n.
Nuclear Fusion
Nuclear fusion is a process in which atomic nuclei are fused together to form heavier nuclei. Large amounts of energy are released when fusion occurs.The reactions which take place inside the sun is an example of nuclear fusion.
Examples:
11H + 21H → 32He.
32He + 32He → 42He + 211H.
11H + 11H → 21H + 0+1β.
STREPTOCOCCUS PNEUMONIA
This vaccine is used for active immunization against invasive disease and pneumonia caused by “Streptococcus pneumonia” in infants.
The vaccine is administered in an intramuscular manner.
This is the first indigenously developed vaccine in the field of pneumonia. The vaccine has been developed by Serum Institute of India, Pune.
Streptococcus pneumonia?
Streptococcus pneumonia (pneumococcus) is a Gram-positive bacterium that is responsible for the majority of community-acquired pneumonia.
It is a commensal organism in the human respiratory tract, meaning that it benefits from the human body, without harming it.
However, infection by pneumococcus may be dangerous, causing not only pneumonia, but also bronchitis, otitis media, septicemia, and meningitis.
This vaccine is used for active immunization against invasive disease and pneumonia caused by “Streptococcus pneumonia” in infants.
The vaccine is administered in an intramuscular manner.
This is the first indigenously developed vaccine in the field of pneumonia. The vaccine has been developed by Serum Institute of India, Pune.
Streptococcus pneumonia?
Streptococcus pneumonia (pneumococcus) is a Gram-positive bacterium that is responsible for the majority of community-acquired pneumonia.
It is a commensal organism in the human respiratory tract, meaning that it benefits from the human body, without harming it.
However, infection by pneumococcus may be dangerous, causing not only pneumonia, but also bronchitis, otitis media, septicemia, and meningitis.
🅾 G.kiran'$( विज्ञान + तंत्रज्ञान )🅾
========================
@Gkiran'$ Maths Acdmy. Pune
0⃣ प्रश्न क्र :- 78....क्षार नियंत्रणाचे काम हे मानवी शरीरातील अड्रेनल ग्रंथिकडून केले जाते. त्या कुठे विसवालेल्या असतात?
( राज्यसेवा :- 2016)
पर्याय :--- @sandipkawale
1) मुत्रपिंडामध्ये
2) मुत्रपिंडावर
3) मुत्रपिंडाच्या विरुद्ध बाजूस
4) दोन्ही मूत्रपिंडामध्ये
✅ उत्तर:- [पर्याय क्र (2) बरोबर.]
स्पष्टीकरण :-
अधिवृक्क ग्रंथी (Adrenal Gland)
1⃣ ही ग्रंथी विशिष्ट असे संप्रेरक स्रावते ज्यामुळे रक्तातील क्षारांचे प्रमाण नियंत्रित केले जाते.
2⃣ ही ग्रंथी मुत्रपिंडावर वसलेली असते ज्याद्वारे सोडियम चे प्रमान नियंत्रित केले जाते
3⃣ Adrenaline हे संप्रेरक या ग्रंथिद्वारे स्रावले जाते
4⃣ Adrenaline हे संप्रेरक मानुस रागात असताना , भीतीने घाबरला असताना , तनावात असताना मदत करते म्हणून याला आपातकालीन संप्रेरक(emergency hormone) म्हणतात.
◆◆T Channel : @gkiran123
➖➖➖➖➖➖➖➖➖➖➖➖
0⃣ प्रश्न क्र.79)...
ऑक्सिश्वसनाच्या शेवटी काय तयार होते ?
(राज्यसेवा - 2015)
पर्याय :-- @sandipkawale
1) CO2 + CO
2) CO2 + NO
3) CO2 +O2
4) CO2 + H2O
✅उत्तर :- [पर्याय क्र( 4) बरोबर]
🔘 स्पष्टीकरण :- ऑक्सिश्वसन करताना ऑक्सीजन आत मध्ये घेतला जातो आणि कार्बन डाइऑक्साइड बाहेर टाकला जातो.
या प्रक्रिये मध्ये सोबतच पाणी पण वाफ़ेच्या स्वरुपात बाहेर पडत असते.
==========================
https://t.me/joinchat/AAAAAD994psmj7jTZkFksQ
========================
@Gkiran'$ Maths Acdmy. Pune
0⃣ प्रश्न क्र :- 78....क्षार नियंत्रणाचे काम हे मानवी शरीरातील अड्रेनल ग्रंथिकडून केले जाते. त्या कुठे विसवालेल्या असतात?
( राज्यसेवा :- 2016)
पर्याय :--- @sandipkawale
1) मुत्रपिंडामध्ये
2) मुत्रपिंडावर
3) मुत्रपिंडाच्या विरुद्ध बाजूस
4) दोन्ही मूत्रपिंडामध्ये
✅ उत्तर:- [पर्याय क्र (2) बरोबर.]
स्पष्टीकरण :-
अधिवृक्क ग्रंथी (Adrenal Gland)
1⃣ ही ग्रंथी विशिष्ट असे संप्रेरक स्रावते ज्यामुळे रक्तातील क्षारांचे प्रमाण नियंत्रित केले जाते.
2⃣ ही ग्रंथी मुत्रपिंडावर वसलेली असते ज्याद्वारे सोडियम चे प्रमान नियंत्रित केले जाते
3⃣ Adrenaline हे संप्रेरक या ग्रंथिद्वारे स्रावले जाते
4⃣ Adrenaline हे संप्रेरक मानुस रागात असताना , भीतीने घाबरला असताना , तनावात असताना मदत करते म्हणून याला आपातकालीन संप्रेरक(emergency hormone) म्हणतात.
◆◆T Channel : @gkiran123
➖➖➖➖➖➖➖➖➖➖➖➖
0⃣ प्रश्न क्र.79)...
ऑक्सिश्वसनाच्या शेवटी काय तयार होते ?
(राज्यसेवा - 2015)
पर्याय :-- @sandipkawale
1) CO2 + CO
2) CO2 + NO
3) CO2 +O2
4) CO2 + H2O
✅उत्तर :- [पर्याय क्र( 4) बरोबर]
🔘 स्पष्टीकरण :- ऑक्सिश्वसन करताना ऑक्सीजन आत मध्ये घेतला जातो आणि कार्बन डाइऑक्साइड बाहेर टाकला जातो.
या प्रक्रिये मध्ये सोबतच पाणी पण वाफ़ेच्या स्वरुपात बाहेर पडत असते.
==========================
https://t.me/joinchat/AAAAAD994psmj7jTZkFksQ
Telegram
सामान्य विज्ञान By Sandip Kawale
"सामान्य विज्ञान" विषया बद्दल स्पर्धा परीक्षा उपयोगी रोज 5 प्रश्न स्पष्टीकरणा सह..गरजू आणि प्रमाणिक प्रयत्न,.......!!!
संपर्क :- @science3737
संपर्क :- @science3737
Forwarded from SAIMkatta
This media is not supported in your browser
VIEW IN TELEGRAM
MPSC च्या सर्व प्रश्नपत्रिकांचे पेपर सोल्युशन....
अंकगणित व बुद्धिमापन
संपूर्ण स्पष्टीकरणासह...
2011 ते 2020 संपूर्ण प्रश्नपत्रिका अंतर्भूत
--------------------------------------------------------
संपादक-
समाधान निमसरकार
लेखक-
G.Kiran
•Ex Custom Officer
•Ex Dy.CEO
•D.D.R.
------------------------------------------------------
महाराष्ट्रात सर्वत्र उपलब्ध
ऑनलाइन Amazon वर उपलब्ध
महाराष्ट्रातील तमाम विद्यार्थ्यांच्या आग्रहामुळे ऑनलाईन Amazon वर सुरवातीचे 2 दिवस विशेष सवलतीत उपलब्ध.
खरेदी करण्यासाठी Amazon लिंक-
https://amzn.to/2EHhAal
------------------------------------------------------
अधिक माहितीसाठी संपर्क-9595382922
आगामी 2020 मधील सर्व स्पर्धा परीक्षेसाठी अत्यंत उपयुक्त प्रत्येकांनी एकदा नक्की अभ्यासा.
अंकगणित व बुद्धिमापन
संपूर्ण स्पष्टीकरणासह...
2011 ते 2020 संपूर्ण प्रश्नपत्रिका अंतर्भूत
--------------------------------------------------------
संपादक-
समाधान निमसरकार
लेखक-
G.Kiran
•Ex Custom Officer
•Ex Dy.CEO
•D.D.R.
------------------------------------------------------
महाराष्ट्रात सर्वत्र उपलब्ध
ऑनलाइन Amazon वर उपलब्ध
महाराष्ट्रातील तमाम विद्यार्थ्यांच्या आग्रहामुळे ऑनलाईन Amazon वर सुरवातीचे 2 दिवस विशेष सवलतीत उपलब्ध.
खरेदी करण्यासाठी Amazon लिंक-
https://amzn.to/2EHhAal
------------------------------------------------------
अधिक माहितीसाठी संपर्क-9595382922
आगामी 2020 मधील सर्व स्पर्धा परीक्षेसाठी अत्यंत उपयुक्त प्रत्येकांनी एकदा नक्की अभ्यासा.
लेसरच्या सहाय्याने पर्यावरण सनियंत्रित करण्याच्या तंत्राला काय म्हणतात ?
.... ( राज्यसेवा- 2015)
.... ( राज्यसेवा- 2015)
Anonymous Poll
24%
रडार.(RADAR)
39%
सोनार.(SONAR)
19%
लेडार.(LEDAR)
19%
लिडार.(LIDAR)
Question -2 प्रकाशाचे अस्तित्व ज्या सूक्ष्म कणांमुळे तयार होते त्या कणांना(particles) काय म्हणतात ?
Anonymous Poll
19%
इलेक्ट्रान
23%
पॉझिट्रोन
43%
फोटॉन
14%
प्रोटॉन
नैसर्गिक स्रोतातिल कोणत्या घटका पासून चरबी आणि तेल मिळते ?
....( राज्यसेवा पूर्व- 2018)
....( राज्यसेवा पूर्व- 2018)
Anonymous Poll
31%
कर्बोदके. (carbohydrates)
37%
लिपिड.(Lipid)
25%
प्रथिने.(Protein)
7%
टर्पिन.(Terpin)
Question 3 विटामिन बी-12 चे खालीलपैकी स्रोत कोणते आहे?
.... ( राज्यसेवा- 2017)
.... ( राज्यसेवा- 2017)
Anonymous Poll
39%
मांस, मासे, यकृत व लहान आतड़यातील जीवाणु.
16%
मशरूम, धान्य व काजू.
14%
भाकरी, भात, ब्रोकोली व सोयाबीन.
31%
वरीलपैकी सर्व.
Forwarded from सामान्य विज्ञान By Sandip Kawale
🅾 ( विज्ञान + तंत्रज्ञान )🅾
========================
⏺ प्रश्न क्र 77)...कोरडी कडधान्ये, साखर, पिठ, हवाबंद केलेली फळे व भाज्या ही सर्व उदाहरणे खालीलपैकी कोणत्या प्रकारच्या अन्नपदार्थाची आहे.?
(State Excise pre- 2017)
पर्याय:--- @sandipkawale
1) नाशवंत पदार्थ
2) उपान्त्य नाशवंत पदार्थ
3) टिकाऊ किंवा स्थिर पदार्थ
4) वरीलपैकी कोणतेही नाही
✅ उत्तर : [ पर्याय (3) बरोबर ]
🔘 स्पष्टीकरण :-
🎯🎯 अन्नरक्षण पद्धती (food preservative techniques) 🎯🎯
🔸 गोठानिकरण (chilling)
कमी तापमानाला अन्नापदार्थातील जैविक व रासायनिक प्रक्रियांचा वेग मंदावतो त्यामुळे अन्नापदार्थ खुप काळ टिकू शकतात. यासाठीच घरातील शीतकपाटाचा उपयोग करतात.
🔸 धुरिकारण (smoking)
यामध्ये धुर देवून अन्न संरक्षित केले जाते. यासाठी अल्युमिनिअम फॉस्पाइड वापरतात.
🔸 किटकनाशकाचा वापर (use of insecticide)
पोत्यात धान्य भरल्या नंतर मेलॅथिओनचा फवारा पोत्यावर मारतात.
🔸 किरनिकरण (radiation)
या पद्धतित अन्नपदार्थावर अयनिभवन करणाऱ्या किराणांचा मारा करतात. उदा. X-ray , ग्यामा किरण. या प्रक्रियेमुळे सूक्ष्मजीव , बुरशी व किटकांचा नाश होतो. फळाणचा पिकण्याचा कालावधी वाढतो. तसेच अंकुरण्याची प्रक्रिया मंद झाल्यामुळे बटाटे , कांदे इ. पदार्थ जास्त कालावधी साठी टिकू शकतात.
🔸 वायुचा वापर (use of gases)
वेफर्स व इतर पदार्थ हवाबंद पिशव्यांमध्ये बंद करताना नायट्रोजन वायुचा वापर करुन त्यातील कीटक व बुराशीच्या वाढीला आळा घातला जातो.
🔸 नैसर्गिक परिरक्षक ( natural preservative)
निसर्गतः उपलब्ध असणारे पदार्थ यात प्रामुख्याने मीठ , साखर, तेल, वापरून बनवलेली लोनची , जॅम , मुराम्बे इ. पदार्थ तयार करतात.
🔸पाश्चरिकरण
या पद्धतीत दूध विशिष्ठ तापमानाला उदा. 80℃ ला 15 मिनिटे तापवले जाते व नंतर ताबडतोब थंड केले जाते यामुळे दुधातील सूक्ष्मजीवांचा नाश होऊन ते दीर्घकाळ टिकते.
=========================
https://t.me/joinchat/AAAAAD994psmj7jTZkFksQ
========================
⏺ प्रश्न क्र 77)...कोरडी कडधान्ये, साखर, पिठ, हवाबंद केलेली फळे व भाज्या ही सर्व उदाहरणे खालीलपैकी कोणत्या प्रकारच्या अन्नपदार्थाची आहे.?
(State Excise pre- 2017)
पर्याय:--- @sandipkawale
1) नाशवंत पदार्थ
2) उपान्त्य नाशवंत पदार्थ
3) टिकाऊ किंवा स्थिर पदार्थ
4) वरीलपैकी कोणतेही नाही
✅ उत्तर : [ पर्याय (3) बरोबर ]
🔘 स्पष्टीकरण :-
🎯🎯 अन्नरक्षण पद्धती (food preservative techniques) 🎯🎯
🔸 गोठानिकरण (chilling)
कमी तापमानाला अन्नापदार्थातील जैविक व रासायनिक प्रक्रियांचा वेग मंदावतो त्यामुळे अन्नापदार्थ खुप काळ टिकू शकतात. यासाठीच घरातील शीतकपाटाचा उपयोग करतात.
🔸 धुरिकारण (smoking)
यामध्ये धुर देवून अन्न संरक्षित केले जाते. यासाठी अल्युमिनिअम फॉस्पाइड वापरतात.
🔸 किटकनाशकाचा वापर (use of insecticide)
पोत्यात धान्य भरल्या नंतर मेलॅथिओनचा फवारा पोत्यावर मारतात.
🔸 किरनिकरण (radiation)
या पद्धतित अन्नपदार्थावर अयनिभवन करणाऱ्या किराणांचा मारा करतात. उदा. X-ray , ग्यामा किरण. या प्रक्रियेमुळे सूक्ष्मजीव , बुरशी व किटकांचा नाश होतो. फळाणचा पिकण्याचा कालावधी वाढतो. तसेच अंकुरण्याची प्रक्रिया मंद झाल्यामुळे बटाटे , कांदे इ. पदार्थ जास्त कालावधी साठी टिकू शकतात.
🔸 वायुचा वापर (use of gases)
वेफर्स व इतर पदार्थ हवाबंद पिशव्यांमध्ये बंद करताना नायट्रोजन वायुचा वापर करुन त्यातील कीटक व बुराशीच्या वाढीला आळा घातला जातो.
🔸 नैसर्गिक परिरक्षक ( natural preservative)
निसर्गतः उपलब्ध असणारे पदार्थ यात प्रामुख्याने मीठ , साखर, तेल, वापरून बनवलेली लोनची , जॅम , मुराम्बे इ. पदार्थ तयार करतात.
🔸पाश्चरिकरण
या पद्धतीत दूध विशिष्ठ तापमानाला उदा. 80℃ ला 15 मिनिटे तापवले जाते व नंतर ताबडतोब थंड केले जाते यामुळे दुधातील सूक्ष्मजीवांचा नाश होऊन ते दीर्घकाळ टिकते.
=========================
https://t.me/joinchat/AAAAAD994psmj7jTZkFksQ
Telegram
सामान्य विज्ञान By Sandip Kawale
"सामान्य विज्ञान" विषया बद्दल स्पर्धा परीक्षा उपयोगी रोज 5 प्रश्न स्पष्टीकरणा सह..गरजू आणि प्रमाणिक प्रयत्न,.......!!!
संपर्क :- @science3737
संपर्क :- @science3737
Forwarded from Gkiran Maths (गणित + बुद्धिमत्ता)
➖➖➖➖➖➖➖➖➖➖➖➖
Batch Join करण्यासाठी :--
वरील QR Code स्कॅन करून
₹ 499/-- payment चा screenshot पाठवा..
संपर्क :
संदीप सर -- 9595 131037 /
8830 500819
👇👇 App Link :--
http://on-app.in/app/home?orgCode=yohza&referrer=utm_source%3Dcopy-link%26utm_medium%3Dtutor-app-referral
➖➖➖➖🌺🌺🌺➖➖➖➖
Batch Join करण्यासाठी :--
वरील QR Code स्कॅन करून
₹ 499/-- payment चा screenshot पाठवा..
संपर्क :
संदीप सर -- 9595 131037 /
8830 500819
👇👇 App Link :--
http://on-app.in/app/home?orgCode=yohza&referrer=utm_source%3Dcopy-link%26utm_medium%3Dtutor-app-referral
➖➖➖➖🌺🌺🌺➖➖➖➖
विषाणू (व्हायरस)....... असतात ?( राज्यसेवा 2014)
Anonymous Quiz
26%
एक पेशीय जीव.
22%
पेशीभित्तिका रहित पेशी.
27%
बहुपेशीय सजीव.
26%
अपेशीय जीव.
पिवळा ताप (yellow fever) हा रोग कशामुळे होतो?(Asat.2014)
Anonymous Quiz
28%
अरबो व्हायरस मुळे.
38%
राबडो व्हायरसमुळे.
26%
रिकेटसिया.
9%
एच आय व्ही विषाणू मुळे.