Water makes averagely about 60% part of human body and is necessary in every biochemical reaction occurring in human body. Which of the following is a disease which is caused due to loss of water in body making the patient seriously ill in a short time?
Anonymous Quiz
11%
Rehydration
30%
Hydration
53%
Dehydration
6%
Hydrolysis
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Mosquitoes are often seen breeding on the stagnant water. We should not allow mosquitoes to breed in our surroundings because they
Anonymous Quiz
24%
Multiply very fast and cause pollution
45%
Are vectors for many diseases
24%
Bite and cause skin diseases
7%
Are not important insects
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Infectious diseases are the diseases that can spread from infected person to the healthy person. Which of the following can make you ill if you come in contact with an infected person?
Anonymous Quiz
11%
Genetic abnormality
25%
Blood cancer
15%
High blood pressure
50%
Sneezing and coughing
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What would happen, if all the oxygen present in the environment is converted to ozone?
Anonymous Quiz
15%
We will be protected more
38%
It will become poisonous and kill all living forms
28%
Ozone is not stable, hence it will be toxic
18%
It will allow harmful sun radiations to reach earth and damage many life forms
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When we breathe in air, nitrogen also goes inside along with oxygen. What is the fate of nitrogen?
Anonymous Quiz
17%
It moves along with oxygen into the cells
50%
It comes out with the carbon dioxide during exhalation
16%
It is absorbed only by the nasal cells
17%
Nitrogen concentration is already more in the cells, so itis not at all absorbed
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There is always a cycle of CO2 running in the atmosphere due to which the concentration of CO2 remains constant in the atmosphere. Choose the correct sequence of this cycle:
Anonymous Quiz
18%
CO2 in atmosphere→ decomposers → organic carbon in animals → inorganic carbon in soil
47%
CO2 in atmosphere → organic carbon in plants →organic carbon in animals → inorganic carbon in soil
19%
Inorganic carbonates in water →organic carbon in plants → organic carbon in animals → scavengers.
16%
Organic carbon in animals → decomposers → CO2 in atmosphere →organic carbon in plants
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You must have observed that during the winters sometimesit becomes quite difficult to see even the objects short distance apart. This low visibility during the cold weather is due to:
Anonymous Quiz
11%
Formation of fossil fuels
57%
Unburnt carbon particles of hydrocarbons suspended in air
18%
Lack of adequate power supply
14%
None of these
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The ‘water pollution’ can be defined in several ways. Which of the following statements does not give the correct definition?
Anonymous Quiz
29%
The addition of the undesirable substances to water bodies
40%
The removal of the desirable substances from water bodies
21%
A change in pressure of the water bodies
10%
A change in temperature of the water bodies
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A cool breeze after a hot day brings all of us considerable relief. This breeze is actually the moving air. What is the basic process that causes this movement of air?
Anonymous Quiz
41%
Pressure difference between the air of two regions
20%
Moving leaves of the plants
29%
Temperature difference between the two regions
11%
Striking of air with the mountains
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If the carbon dioxide content in the atmosphere is increased then which one of the following would not get affected?
Anonymous Quiz
21%
Amount of the heat retained by the environment
33%
Process of photosynthesis in plants
24%
Global warming
22%
Existence of desert plants
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The nitrogen molecules present in air can be converted into nitrates by:
Anonymous Quiz
53%
A biological process of nitrogen fixing bacteria present in the soil
22%
A biological process of carbon fixing factor present in the soil
16%
Any of the industries manufacturing nitrogenous compounds
9%
The plants used as cereal crops in field
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Top soil is the best for the vegetation. The main components ofthis productive top layer are:
Anonymous Quiz
24%
Humus and living organisms only
17%
Humus and soil particles only
23%
Humus, living organisms and plants
35%
Humus, living organisms and soil particles
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The process of nitrogen fixation by bacteria does not take place in the presence of:
Anonymous Quiz
23%
Molecular form of hydrogen
22%
Elemental form of oxygen
28%
Water
26%
Elemental form of nitrogen
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Weeds are the unwanted plants that grow along with the cultivated plants. How do they affect the crop plants?
Anonymous Quiz
11%
By killing plants in the field before they grow
16%
By dominating the plants to grow
39%
Competing for various resources of plants causing low availability of nutrients
34%
All of above
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Growing different crops in the same field in a pre-planned succession, to improve the quality and quantity of the crop yield and maintain the fertility of soil is known as:
Anonymous Quiz
43%
Crop rotation
12%
Plant breeding
33%
Intercropping
13%
Crop management
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Drones” in the honeybee colony are stingless and are unable to gather food. Their main role is to mate with queen bee and help in breeding.
Drones are born out from:
Drones are born out from:
Anonymous Quiz
32%
Fertilized eggs and well-nourished larvae
31%
Unfertilized eggs
19%
Fertilized eggs giving heat treatment
18%
Same way as the worker bee is born
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Find out the wrong statement among the following:
Anonymous Quiz
12%
White revolution is meant for increase in milk production
19%
Blue revolution is meant for increase in fish production
44%
Increasing food production without compromising environment quality is as sustainable agriculture
25%
None of these
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Which of the following is a fungus disease causing maximum deaths of poultry birds?
Anonymous Quiz
28%
Pullorium
20%
Coryza
26%
Rickets
25%
Aspergillosis
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