CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III): Questions 182 - 186 of 385

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Question number: 182

» Fundamentals of Environmental Chemistry » Solubility Products, Solubilty of Gases in Water

Appeared in Year: 2009

MCQ▾

Question

The use of anthropoid hazard chemicals like DDT causes reduction in fish population because the chemical mimics the effect of – (December)

Choices

Choice (4) Response

a.

Luteinizing hormone

b.

Testosterone

c.

Estrogen

d.

All a. , b. and c. are correct

Question number: 183

» Principles of Analytical Methods » Gas Chromatography

Appeared in Year: 2015

MCQ▾

Question

In biogas, the percentage (%) of methane is in the range of: (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 184

» Water » Standards, Sewage and Waste Water Treatment and Recycling

Appeared in Year: 2015

Assertion-Reason▾

Assertion (Ꭺ)

Methanogenic archaea (methanogens) grow in swamps and sewage. (June)

Reason (Ꭱ)

Methanogens are obligate anaerobes

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

Question number: 185

» Basics of Environmental Geosciences » Earth's Processes and Geological Hazards » Floods, Landslides and Avalanche

Appeared in Year: 2015

MCQ▾

Question

Slump is a complex slide, which consists of: (June)

Choices

Choice (4) Response

a.

Curved and planar shear surfaces

b.

Curved shear surface

c.

Planar shear surface

d.

No definite shear surface

Question number: 186

» Environmental Awareness » Soil Erosion

Appeared in Year: 2015

MCQ▾

Question

The set of processes by which soil and rock are loosened and move downhill are called: (June)

Choices

Choice (4) Response

a.

Saltation

b.

Abrasion

c.

Erosion

d.

Weathering

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