Bio-Geography (CBSE-NET (UGC) Geography (Paper-II & Paper-III)): Questions 13 - 19 of 144

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2348 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 600.00 or

Question number: 13

» Bio-Geography » Environmental Hazards and Problems of Pollution

Appeared in Year: 2014

MCQ▾

Question

The main Source of carbon monoxides, as air pollutants, is: (June)

Choices

Choice (4) Response

a.

Dye-making

b.

Blast furnaces

c.

Thermal decomposition of fats

d.

Gasoline motor exhausts

Question number: 14

» Bio-Geography » Soil Structure and Formation

MCQ▾

Question

pH of a soil indicates

Choices

Choice (4) Response

a.

Its maturity

b.

Its age

c.

Its fertility

d.

Its chemical reaction

Question number: 15

» Bio-Geography » Soil Structure and Formation

MCQ▾

Question

Organic acids released from decomposing organic matter help to ________ acidic nature of soils

Choices

Choice (4) Response

a.

release

b.

neutralize

c.

increase

d.

reduce

Question number: 16

» Bio-Geography » Soil Structure and Formation

MCQ▾

Question

Illuviation is

Choices

Choice (4) Response

a.

Deposition of soluble minerals in the lower layers

b.

Removal of soluble minerals from the top soil layers

c.

Removal of salts from surface

d.

Use of high doses of chemical fertilizers

Question number: 17

» Bio-Geography » Soil Structure and Formation

MCQ▾

Question

Which of the following is a characteristics of black soil or Regur

Choices

Choice (4) Response

a.

It is the most fertile soil

b.

Lime, potash and Iron and essential constituents of black soil

c.

It is generally clayey and impermeable

d.

All a. , b. and c. are correct

Question number: 18

» Bio-Geography » Soil Structure and Formation

MCQ▾

Question

Loamy soil are a mixture of

Choices

Choice (4) Response

a.

Clayey, silty and sandy soils

b.

Alluvial and lava soils

c.

Sandy and silty soils

d.

Volcanic and red soils

Question number: 19

» Bio-Geography » Soil Structure and Formation

MCQ▾

Question

“Caliche deposits” in the Atacama Desert of Chile is actually

Choices

Choice (4) Response

a.

Ammonia deposits

b.

Potash deposits

c.

Sodium Nitrate

d.

Guano

f Page
Sign In