MCQ on Environmental Sciences for various Agriculture Exams✅ Part - 4

1) Size range of atmospheric aerosols is
i. 150 µm to 200 µm
ii. 100 µm to 200 µm
iii. 5 nm to 100 nm
iv. 5 µm to 100 µm

2) The International year of biodiversity is
i. 2008
ii. 2010
iii. 2006
iv. 1972

3) The pyramid that is never inverted
i. Pyramid of energy
ii. Pyramid of number
iii. Pyramid of biomass
iv. None

4) Most toxic state of Chromium is
i. Cr +4
ii. Cr +3
iii. Cr +6
iv. Cr +6

5) After the environmental clearance, upto how many years the EIA report of a hydropower project would be valid?
i. 30 years
ii. 20 years
iii. 10 years
iv. 5 years

6) In which year Ramsar convention on wetland come into force?
i. 1971
ii. 1975
iii. 1980
iv. 1985

7) Laterite soil contains more of
i. Magnesium and boron
ii. Iron and aluminium
iii. Aluminium and magnesium
iv. Iron and boron