Environmental Science Practice Tests | NTA UGC NET Exam Questions June 2022

1.The grain size(USDA) of slit in soil ranges between
0.2mm to 0.5mm
0.5mm to 0.1mm
0.05mm to 0.5mm
0.05mm to 0.002mm

2.Continuity equation expresses the law of conservation of
Mass
Entropy
Energy
Momentum

3.Which of the following is not a phase of secondary succession?
Initiation
Invasion
Termination
Constinuation

4.The concept of r and k selection was originally given by
Grime (1979)
Molles (2008)
MacArthur and Wilson 1967
Mayr (1942)

5.The sum of diffused and direct solar radiation, is called
global solar radiation
universal solar radiation
continental solar radiation
total solar radiation

6.Which one of the following elements is used in making photovoltaic solar cell
Tungsten
Silver
Lead
Silicon

7. Which plant/ tree has been recommended in India for extracting of biodiesal
Wheat-Triticum aestivum
Sugarcane - Saccarum officinarum
Mango-Mangifera indica
Karanja-Pongamia pinnata

8.Which process facilitates conversion of raw fat into biodisesal in the presence of alcohol?
Glycerol conversion
Torrefaction
Transesterification
Sacharification

9.Anammox bacteria is required for which of the following steps in watewater treatment?
Nitrate to Nitrite conversion
Nitrite to nitrate conversion
Molecular Nitrogen to Ammonia conversion
Ammonium ion to Molecular Nitrogen conversion

10. The use of bacteria and other microorganisms to breakdown hazardous waste into relatively harmlessly components, is termed as
Bioremediation
Phyto remediation
integrated waste management
source reduction process

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