Biology [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 507 - 512 of 518

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Question number: 507

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Question

MCQ▾

Compost prepared using earthworms is known as

Choices

Choice (4)Response

a.

Compost

b.

Humus

c.

Vermicompost

d.

Question does not provide sufficient data or is vague

Question number: 508

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Question

MCQ▾

Genetically modified crops are with

Choices

Choice (4)Response

a.

increased productivity

b.

increased pest resistance

c.

more stable in adverse condition

d.

All a. , b. and c. are correct

Question number: 509

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Question

MCQ▾

Rearing of silkworm is known as

Choices

Choice (4)Response

a.

Sericulture

b.

Apiculture

c.

Vermiculture

d.

Horticulture

Question number: 510

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Question

MCQ▾

Fertilizer is used for plants to provide mostly

Choices

Choice (4)Response

a.

nitrogen

b.

potassium

c.

phosphorus

d.

All a. , b. and c. are correct

Question number: 511

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Question

Match List-Ⅰ List-Ⅱ▾

Match the following.

List-Ⅰ (Column I)List-Ⅱ (Column II)

(A)

Abscisic acid

(i)

Plant growth regulator

(B)

Gibberelin

(ii)

Suspension culture for plant propogation

(C)

Azotobacter

(iii)

Nitrogen fixing bactria

(D)

2,4-dichlorophenoxyacetic acid

(iv)

Seed germination

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (i)
  • (iv)
  • (iii)
  • (ii)

b.

  • (ii)
  • (iii)
  • (iv)
  • (i)

c.

  • (iv)
  • (ii)
  • (iii)
  • (i)

d.

  • (i)
  • (iii)
  • (ii)
  • (iv)

Question number: 512

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Question

MCQ▾

Organic farming is the farming that utilizes

Choices

Choice (4)Response

a.

Organic manure

b.

Chemicals

c.

Biofertilizers

d.

Both a. and c. are correct