MCQs on EVM(Environment Management) Page 3

1. What is a food chain?

a. A long chain made of food

b. Process of preparing food

c. Food where locked by chain

d. Pathway that energy and nutrients flow through the ecosystem


2. Why organisms in food chains are grouped into categories?

a. To form community

b. To share the energy

c. To form trophic levels

d. To get more energy

3. What role human plays in food chains?

a. Producers

b. Consumers

c. Humans do not involve in food chains

d. Decomposers


4. Why do all food chains start with plants?

a. Because plants are easily grown

b. Because plants are nutritious

c. Because plants can produce its own energy

d. Because plants do not require energy


5. How many types of ecological models are there?

a. One

b. Three

c. Two

d. Four


6. Food chains are often used in ecological modeling.

a. True

b. False


7. Which of the following food chain correctly describes the flow of energy in an ecosystem?

a. Grass->lion->human

b. Cow->grass->lion

c. Grass->goat->human

d. Leaf->bird->lizard


8. Which of the following condition is true about food chain?

a.Provide more energy for next trophic level

b. Provides food for succeeding organisms

c. Consume energy from next trophic level

d. Do not pass energy to next trophic level


9. Carrot->rabbit->fox is an example of_______________________

a. Food web

b. Food chain

c. Food cycle

d. Food round


10. Which of the following factor diminishing as food chain proceeds?

a. Pressure

b. Energy

c. Nutrition

d. Temperature


11. Which of the following organisms begins marine food chains?

a. Phytoplankton

b. Fishes

c. Zooplankton

d. Corals

12. We can find a marine ecosystem on a beach shore.

a. True

b. False


13. Ecosystem may be defined as____________

a. A species along with environment

b. Plants found in water

c. Plants found on land

d. Call plants and animals species along with environment


14. A pond / lake is

a. A biome

b. Unnatural ecosystem

c. An artificial ecosystem

d. Community of plants and animals only


15. Biome is

a. The fauna of an ocean

b. The Flora of land

c. Communities of organisms interacting with one another

d. The part of the earth and its atmosphere which is inhabited by living organisms


16. Total organic matter present in an ecosystem is called

a. Biomass

b. Biome

c. Litter

d. Food


17. The most important organisms for an ecosystem are

a. Herbivorous

b. Carnivorous

c. Green plants

d. Protozoa


18. A food chain consists of

a. Producers

b. Consumers

c. Decomposers

d. Producers and Consumers


19. Food chain always starts with

a. Photosynthesis

b. Respiration

c. Nitrogen fixation

d. Decay


20. Converters or transducers organisms in the food chain are called

a. Herbivorous

b. Carnivorous

c. Decomposers

d. Producers


21. Biological equilibrium is an equilibrium among the

a. Producers

b. Producers and consumers

c. Decomposers

d. Producers consumers and decomposers


22. Energy flow in an ecosystem is

a. Uni directional

b. Bidirectional

c. Multidirectional

d. All the above


23. Food web_______________

a. Increases variety of food at each trophic level

b. Delicately balances the inter relations amongst organisms

c. Decreases variety of food but increases quantity of food at each trophic level

d. Increases variety as well as quantity of food at each trophic level


24. _________is the study of the interactions of organisms with each other and with the physical environment.

a. Anthropolgy

b. Ethology

c. Environmentalism

d. Ecology

e. Ecosystemology


25. A/An _________ is defined as all the organisms within an area belonging to the same species.

a. Ecosystem 

b. Biosphere

c. Population

d. Community



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