Multiple Choice Questions (MCQ) with Answers on Ecosystems

Multiple Choice Questions (MCQ) on Ecosystems

1-A single bacterium in the soil interacts with

(A) The water

(B) Air

(C) Particles of soil around it

(D) All of the above


2-The region of earth, where life exists is known as

(A) Atmosphere

(B) Biosphere

(C) Lithosphere

(D) Hydrosphere


3-In the biosphere energy is received from

(A) The Sun

(B) The interior of the earth

(C) Both (A) and (B)

(D) Work


4-The Biosphere consists of the following

(A) Lakes

(B) Soils

(C) Solid sediments

(D) All of the above


5-In which of the following form(s), the waster products are discharged into the biosphere?

(A) Gaseous

(B) Liquid

(C) Solid

(D) All of the above


6-Ecosystem is smallest unit of

(A) Ionosphere

(B) Lithosphere

(C) Biosphere

(D) Mesosphere


7-Energy _____ in an Ecosystem.

(A) is released

(B) is absorbed

(C) flows

(D) None of the above


8-The set of ecosystems is called a

(A) Biome

(B) Climate

(C) Subsystem

(D) Structure


9-The following is an example of Terrestrial Biome

(A) Tropical rain forest

(B) Rivers

(C) Streams

(D) All of the above


10-Terrestrial biomes has a rapid exchange of

(A) Carbon dioxide

(B) Oxygen

(C) Water

(D) All of the above



1-(D), 2-(B), 3-(C), 4-(D), 5-(D), 6-(C), 7-(C), 8-(A), 9-(A), 10-(D)