TNPSC Biology Questions and Answers in English Pdf Download - 1

Question: 1

Which of the following cause great damage to plants?

(A) Bacteria

(B) Viruses

(C) Vertebrates

(D) Insects

Ans: D

Insects

Question: 2

An example of macronutrients required for crops is

(A) Nitrogen

(B) Molybdenum

(C) Manganese

(D) Iron

Ans: A

Nitrogen

Question: 3

An example of cash crop is

(A) Soya bean

(B) Cotton

(C) Rice

(D) Onion

Ans: B

Cotton

Question: 4

Which of the following is not a gaseous cycle?

(A) Oxygen

(B) Nitrogen

(C) Carbon

(D) Phosphorous

Ans: D

Phosphorous

Question: 5

A complex of interrelationships among food chains form

(A) Food world

(B) Food energy

(C) Food pyramid

(D) Food web

Ans: D

Food web

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