Crop Production and Management-Manure and Fertilizers [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 1 - 3 of 3

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Question 1

Question MCQ▾

What is eutrophication

Choices

Choice (4)Response

a.

Leaching of nitrates to ground water

b.

Leaching of nitrates and phosphates into the soil

c.

Leaching of nitrates and phosphate into rivers

d.

Leaching of nitrates and phosphates to drinking water

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Question 2

Question MCQ▾

Gases released during the formation of manure are

Choices

Choice (4)Response

a.

Co, Co2 and CH4

b.

O2, Co2 and CH4

c.

CH4, Co2 and H2O

d.

Co2, So2 and CH4

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Question 3

Question MCQ▾

Follow to replenish the lost nutrients is called

Choices

Choice (4)Response

a.

Crop rotation

b.

Manuring

c.

Fallowing

d.

Transplantation

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