Trivia On Environment: MCQ Quiz!
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- 1.In a food chain, the initial organism is usually:
- A.
Photosynthetic
- B.
Herbivore
- C.
Saprophytic
- D.
Parasitic
- 2.If a grasshopper is eaten by a frog, then the energy transfer will be from:
- A.
Producer to decomposer
- B.
Producer to primary consumer
- C.
Primary consumer to secondary consumer
- D.
Secondary consumer to tertiary consumer
- 3.In the following groups of materials, which group (s) contains only non-biodegradable items? (i) Wood, paper, leather (ii) Polythene, detergent, PVC (iii) Plastic, detergent, grass (iv) Plastic, Bakelite, DDT
- A.
(iii)
- B.
(iv)
- C.
(i) and (iii)
- D.
(ii) and (iv)
- 4.In the figure given alongside, the various trophic levels are shown in the form of a pyramid. At what trophic level the maximum energy is available.
- A.
T4
- B.
T2
- C.
T1
- D.
T3
- 5.Sahara Desert was formed over a period of time due to one of the following uncontrolled activities of man:
- A.
Excessive cutting down of forests and trees
- B.
Excessive killing of large herbivorous
- C.
Excessive killing of large carnivores
- D.
Excessive use of poisonous chemical called herbicides
- 6.What percentage of sun’s energy falling on the leaves of green plants is utilized by the plants in the process of photosynthesis and stored as chemical energy of food?
- A.
1 percent
- B.
10 percent
- C.
20 percent
- D.
99 percent
- 7.The flow of energy in an ecosystem is always:
- A.
Unidirectional
- B.
Bidirectional
- C.
Cyclic
- D.
Multidirectional
- 8.The excessive exposure of humans to ultraviolet rays result in: (i) Damage to immune system (ii) Damage to lungs (iii) Skin cancer (iv) Peptic ulcers
- A.
(i) and (ii)
- B.
(ii) and (iv)
- C.
(iii) and (iv)
- D.
(i) and (iii)
- 9.Most of the water surface of a lake is covered with algae. This algae is a part of the food chain which also includes small fish, bird, larvae and big fish. Which of the following will obtain the maximum energy?
- A.
Big fish
- B.
Bird
- C.
Larvae
- D.
Small fish
- 10.If the energy transferred to a tertiary consumer in a food chain is 10 J, how energy was available to the primary consumer?
- A.
100 J
- B.
500 J
- C.
1000 J
- D.
5000 J
- 11.O2 is converted into O3 by the action of:
- A.
Infrared radiations
- B.
Ultraviolet radiations
- C.
Gamma radiations
- D.
Cosmic radiations
- 12.The ten percent law is associated with:
- A.
Transfer of energy from various trophic levels to decomposers in a food chain
- B.
Transfer of chemical energy from one organism to another
- C.
Transfer of ATP energy into muscular energy
- D.
Transfer of sun’s energy to the organisms called producers
- 13.What will happen if deer is missing in the food chain given below? Grass
- A.
The population of tiger increases
- B.
The population of grass decreases
- C.
Tiger will start eating grass
- D.
The population of tiger decreases and the population of grass increases
- 14.Name the process in which a harmful chemical enters the food chain and gets concentrated at each level in the food chain.
- A.
Concentration
- B.
Biomagnifications
- C.
Expansion
- D.
Pollution
- 15.A natural phenomenon that becomes harmful due to pollution is?
- A.
Global warming
- B.
Ecological balance
- C.
Greenhouse effect
- D.
Desertification
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