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Current Affairs MCQ for UPSC Exams - 25 June 2021

Q.1) A sample of chloroform before using as ananaesthetic, is tested by

a) Fehling’s solution
b) Ammonical cuprous chloride
c) Ammonical silver nitrate solution
d) Silver nitrate solution after boiling withalcoholic KOH

Q.2) Living in the atmosphere of CO is dangerousbecause it

a) Reduces organic matter of tissues
b) Dries up the blood
c) Combined with O2 present inside to form CO2
d) Combines with haemoglobin and makes itincapable of absorbing oxygen

Q.3) In a forest, deer, raccoons, squirrels, and otheranimals eat and find shelter. A detritus food weboccurs as their wastes accumulate on the forestfloor. In this detritus web:

a) Deer and raccoons function as the producers
b) Fungi and earthworms function as producers
c) Decomposers function as consumers
d) The deer and raccoons represent decomposers

Q.4) Which one of the following energy is most utilizedin biomass?

(a)Atomic energy
(b) Geothermal energy
(c) Solar energy
(d) Tidal energy

Q.5) Consider the following statements:

Assertion (A): Ecological productivity decreasesfrom the equator towards the poles.
Reason (R): Insolation rapidly decreases from theequator towards the poles.
Select the correct answer from the codes given below:

Codes:
a) Both A and R are true and R is the correctexplanation of A.
b) Both A and R are true but R is not the correctexplanation of A.
c) A is true but R is false.
d) A is false but R is true.

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Current Affairs MCQ for UPSC Exams - 25 June 2021