Environmental Science MCQs

Question 1

Blue whale is placed under

Accepted Answer

Endangered

Answer

Critically endangered

Answer

Rare

Answer

Extinct

Question 2

What is edge species?

Accepted Answer

The species which occur abundantly in the ecotone

Answer

Species on the verge of extinction

Answer

Rare species

Answer

Endemic species

Question 3

The effects of radioactive pollutants depends upon

Accepted Answer

All of these

Answer

Rate of diffusion

Answer

Energy releasing capacity

Answer

Rate of deposition of the contaminant

Question 4

Ecology deals with the study of:

Accepted Answer

Reciprocal relationship between living and non living components

Answer

Living beings

Answer

Living and non living components

Answer

Environment

Question 5

Light energy is transformed into chemical energy by

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Recycling

Answer

Productivity

Question 6

How do red and blue light differ?

Accepted Answer

The wavelength of red light is longer.

Answer

Blue light has a higher speed of propagation.

Answer

Red light has a higher intensity.

Answer

Red and blue light have different directions of polarization.

Question 7

Incineration of Municipal waste involves

Accepted Answer

Oxidation

Answer

Deduction

Answer

Redox action

Answer

Disintegration

Question 8

The 3 R principle in waste management involves

Accepted Answer

Reduce, Reuse, Recycle

Answer

Reduce, Regain, Reuse

Answer

Reduce, Reform, Reset

Answer

Reduce, Retain, Regain

Question 9

Lead poisoning

Accepted Answer

reduces O2 carrying capacity of hemoglobin in blood

Answer

increases O2 carrying capacity of hemoglobin in blood

Answer

reduces O2 carrying capacity of myoglobin in muscles

Answer

increases O2 carrying capacity of myoglobin in muscles