TNPSC Group 4 Botany Questions and Answers - 2

Question: 6

Leaf blight of paddy is a

(A) Mycotic disease

(B) Bacterial disease

(C) Viral disease

(D) Fungal disease

Question: 7

Natural scavengers of ecosystem are

(A) Abiotic components

(B) Detrivores

(C) Macro consumers

(D) Producers

Question: 8

The percentage of nitrogen in atmospheric air is

(A) 21%

(B) 0.03%

(C) 70%

(D) 78%

Question: 9

A herbivore is a

(A) Primary consumer

(B) Secondary consumer

(C) Tertiary consumer

(D) None of the above

Question: 10

The membrane that covers the heart is

(A) Arachnoid membrane

(B) Pericardium

(C) Pleura

(D) Sarcolemma