Environmental Science (3110007) MCQs

MCQs of Introduction of Environment

Showing 31 to 40 out of 131 Questions
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31.
The rate of biomass per unit area per unit time is known as ___________.
(a) biomagnification
(b) biomes
(c) saprophytes
(d) productivity
Answer:

Option (d)

32.
Mortality rate is defined as ______
(a) Number of births per one thousand people in a particular year
(b) Number of deaths per one thousand people in a particular year
(c) Number of births per one thousand people in a city
(d) Number of deaths per one thousand people in a city
Answer:

Option (b)

33.
Solid or liquid particle in the air smaller than 1 µm is known as _______
(a) Flyash
(b) Aerosol
(c) Soot
(d) Mist
Answer:

Option (b)

34.
___ is a green house gas.
(a) Nitrogen
(b) Oxygen
(c) Argon
(d) Water vapour
Answer:

Option (d)

35.
The area where freshwater from the river mixes with sea water is known as ___
(a) an estuary
(b) a fresh water reservoir
(c) a lake
(d) a stream
Answer:

Option (a)

36.
Eutrophication is caused due to the nutrients like ___________ & ___________.
(a) calcium and sodium
(b) phosphorous and nitrogen
(c) carbon and oxygen
(d) None of the above
Answer:

Option (b)

37.
The percapita water availability ___________ if the utilizable water resources is decreased and the population is increased.
(a) increases
(b) decreases
(c) remain unchanged
(d) may increase or decrease
Answer:

Option (b)

38.
Chipko movement is associated with _______
(a) illiteracy
(b) soil conservation
(c) water conservation
(d) forest conservation
Answer:

Option (d)

39.
Autecology is defined as _______
(a) the study of abiotic environment
(b) the study of communities
(c) the study of population of single species
(d) the study of living and nonliving environment
Answer:

Option (c)

40.
The provisions for environmental protection include ____
(a) prevention and control of water pollution act
(b) prevention and control of air pollution act
(c) environmental protection act
(d) all of the above
Answer:

Option (d)

Showing 31 to 40 out of 131 Questions
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