Free Microbes In Human Welfare (Daily Quiz: 14) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Gobar gas contains mainly

(a) $CH_4$ only

(b) $CO_2 + H_2$

(c) $CO_2 + H_2 O$

(d) $CH_4 + CO_2$ .

Question-2

Assertion:
Before disposal sewage is treated in sewage treatment plant.
Reason:
STPs make sewage less polluting.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.

Question-3

One of the major difficulties in the biological control of insect pest is that

(a) the predator develops a preference to other diets and may itself become a pest

(b) the method is less effective as compared with the use of insecticides

(c) the practical difficulty of introducing the predator to specific areas

(d) the predator does not always survive when transferred to a new environment

Question-4

A major component of gobar gas is

(a) ethane

(b) ammonia

(c) methane

(d) butane

Question-5

Swiss cheese is formed by the bacterium

(a) Lactobacillus

(b) Aspergillus niger

(c) Propionibacterium shemanii

(d) Penicillium roqueforti