Q 1: Which among the following substances is responsible for global cooling instend of global warming
Anonymous Quiz
25%
Black carbon
13%
Nitrous oxide
49%
Sulphate aerosols
12%
HCFC
Q 2: In a typical solar pond which region has the salt concentration gradient
Anonymous Quiz
24%
Surface convective zone
28%
Non- concective zone
36%
Lower convective zone
12%
Entire solar pond.
Q 3: Natural gas is composed primarily of
Anonymous Quiz
65%
Methane
10%
n-butane
1%
n-octane
24%
A mixture of n-octane and n-butane
Q 4: The contribution of CO2 towards global warming has been estimated to be about
Anonymous Quiz
41%
57 – 60%
32%
60 – 75%
17%
80 – 85%
11%
45 – 55%
Q 5: The power obtained from a horizontal wind turbine operating at maximum efficiency is proportional to its diameter (D) as
Anonymous Quiz
5%
D
61%
D^2
22%
D^3/2 D3/2
12%
√D
Q 6: The wavelength range of UV-C radiation is
Anonymous Quiz
35%
320 – 400 nm
26%
280 – 320 nm
8%
100 – 1500 nm
31%
240 – 280 nm
Q 7. The maximum tidal energy potential in India is
Anonymous Quiz
60%
In Gulf of Khambhat
16%
In Gangetic delta in Sundarbans
15%
Along the coast of Odisha
9%
Along the coast of Chennai
Q 8: theoretical efficiency of a silicon solar cell can be
Anonymous Quiz
51%
45%
35%
35%
13%
15%
1%
5%
Q 9: Which of the following types of coal contains higher percentage of volatile matter?
Anonymous Quiz
44%
Peat
12%
Lignite
18%
Bituminous
26%
Anthracite
10: Which rare earth element is not present in the earth’s crust but for commercial purpose comes from the Nuclear reactors?
Anonymous Quiz
42%
Promethium
32%
Lanthanum
17%
Cerium
9%
Samarium
11: among the following, which one has the highest porosity
Anonymous Quiz
8%
Silt
37%
Clay
24%
Gravel
31%
Sand
The most important form of water to plant is
Anonymous Quiz
14%
Hygroscopic
56%
Capillary
2%
Combined
28%
All of the above
Q 13: laterite soil are rich in
Anonymous Quiz
7%
Calcium
66%
Iron and aluminium
12%
Silicate
16%
Sodium and potassium
Q 14: An orchid living on a tree exhibits
Anonymous Quiz
6%
Predator
30%
Mutualism
48%
Commensalism
16%
Parasitism
Q 15: Which statement is correct with respect to the food chain?
Anonymous Quiz
5%
Every component of the food chain forms a trophic level
12%
Inter-relation between different food chains is known as a food web
5%
All the chains formed by nutritional relations is used to understand energy flow.
78%
All of the above
*Special classes for NET JRF Environment science*
*NET JRF (unit 4: Environmental Geosciences)*
*Duration* - 17/06/2022 to till complete unit as per syllabus.
*Class start on 17/06/2022*
Class timing : 7:30 to 9 AM
*Form* 👇
https://forms.gle/8c9j6HUgQRd3Strg9
*Fees- 999/*
*Facilities*
✅ *Live classes on zoom*
✅ *Recording of lecture* ( validity -18 months in your Google drive)
✅ *E-notes complete unit* ( validity -18 months in your Google drive)
✅ *Complete solution and discussion on previous year question)*
✅ *E- booklet of PYQS in your Google drive*
Thanks
Envirocademy
*NET JRF (unit 4: Environmental Geosciences)*
*Duration* - 17/06/2022 to till complete unit as per syllabus.
*Class start on 17/06/2022*
Class timing : 7:30 to 9 AM
*Form* 👇
https://forms.gle/8c9j6HUgQRd3Strg9
*Fees- 999/*
*Facilities*
✅ *Live classes on zoom*
✅ *Recording of lecture* ( validity -18 months in your Google drive)
✅ *E-notes complete unit* ( validity -18 months in your Google drive)
✅ *Complete solution and discussion on previous year question)*
✅ *E- booklet of PYQS in your Google drive*
Thanks
Envirocademy
16: Which of the following correctly lists computer memory types from lowest to highest speed?
Anonymous Quiz
17%
Main Memory, Cache Memory, Secondary Storage
43%
Cache Memory, Secondary Storage, Main Memory
31%
Secondary Storage, Main Memory, Cache Memory
9%
Secondary Stage, Cache Memory, Main Memory
17: The Chinese scholars, 1-Qing and Xuan Zang visited ancient Nalanda University during
Anonymous Quiz
37%
6th century CE
41%
7th century CE
16%
10th century CE
6%
12th century CE
18. In which research method manipulation of 'independent variable' and control of 'extraneous variables' are neither possible nor desirable?
Anonymous Quiz
28%
Experimental method
37%
Ex post facto method
26%
Historical method
9%
Descriptive survey method