Forests: Our Lifeline MCQs with Answers

Question-1. Name the organism on which all animals depend for food.

1. Humus
2. Plants
3. Insects
4. Crops

Question-2. Nutrients are replenished in the soil through:

1. water
2. plant roots
3. humus
4. all of these

Question-3. Select the chain that contains primary consumers.

1. Bird, rabbit, elephant
2. Grass, parrot, snake
3. Snake, hawk, tiger
4. Bacteria, fungi, viruses

Question-4. Select the country that is the largest producer of fuel wood in the world.

1. India
2. China
3. Russia
4. Indonesia

Question-5. The insects butterflies help flowering plant in:

1. deforestation
2. pollination
3. humus
4. none of these

Question-6. The item that is not a product of Forest

1. Sealing Wax
2. Honey
3. Wooden statue
4. Salt

Question-7. Trees and vegetation act as wind breakers and prevents

1. Dust storm
2. Soil erosion
3. Floods
4. All of these

Question-8. Which industry totally depends upon forest product?

1. Agriculture
2. Rubber industry
3. Furniture industry
4. Textile industry

Question-9. Which of the following is a medicinal plant?

1. Cinchona
2. Orange
3. Mango
4. Peepal

Question-10. Which of the following is an animal product?

1. Rubber
2. Catechu
3. Gum
4. Honey

Question-11. Which of the following is incorrect?

1. The tropical rain forests support a wide variety of plants and animals.
2. We find animals such as ape, bird Toucan, red eyed frogs etc. in the regions of tropical rain forests.
3. The temperature range in the areas of tropical rain forests is15-40°C.
4. None of the above is incorrect.

Question-12. Which of the following is influenced by forests?

1. Temperature
2. Climate
3. Animals
4. All of these

Question-13. Which of the following produce food?

1. Saprotroph
2. autotrophs
3. Heterotrophs
4. Herbivores

Question-14. Which of the following statements is not correct?

1. Forests protect the soil from erosion
2. Plants and animals in a forest are not dependent on one another
3. Forests influence the climate and water cycle
4. Soil helps forests to grow and regenerate

Question-15. Decomposers convert the dead plant and animal tissues into

1. clay
2. humus
3. inorganic debris
4. soil

Question-16. Roof of the forest made by the branches of the tall trees is called

1. canopy
2. crown
3. understoreys
4. none of these

Question-17. Sequence that represents the series of eating and being eaten is called

1. food series
2. food chain
3. food web
4. food hub

Question-18. Understoreys are formed due to

1. different types of crowns
2. different sizes of crown
3. different heights of trees
4. all of these

Question-19. Which among the following forest animals is the smallest?

1. Fox
2. Boar
3. Bison
4. Porcupine

Question-20. Which of the following is not the name of a tree?

1. Teak
2. Sal
3. Porcupine
4. Kachnar

Question-21. Which one of the following is a role of forests?

1. Provide food, shelter, water and medicines
2. Prevent soil erosion
3. Prevent flood
4. All the above

Question-22. Which one of the following is an animal product?

1. Gum
2. Catechu
3. Honey
4. Rubber

Question-23. Which one of the following is not a wild animal?

1. Bear
2. Bison
3. Jackal
4. Goat

Question-24. A forest consists of

1. Numerous insects, spiders
2. Floor covered with dead and decaying leaves
3. Animals and Plants
4. All of the above

Question-25. Cutting of tree on large scale is called

1. Urbanization
2. Industrialization
3. Deforestation
4. Aforestation

Question-26. Floods can be controlled by

1. Forests
2. Constructing temporary shelters
3. Constructing Pits
4. By allowing the water to flow into the sea

Question-27. Forests

1. Provide us with oxygen
2. They protect soil and provide habitat to a large number of animals
3. A source of medicinal plants
4. All of the above

Question-28. Forests are called

1. Green lungs
2. Black skin
3. Red kidney
4. Brown heart

Question-29. Greenhouse gases

1. trap heat of the sun
2. are green in colour
3. do not trap heat of the sun
4. smell foul

Question-30. Heavy rain may also damages the:

1. roots
2. soil
3. humus
4. none of these

Question-31. In a food chain the first link is a green plant because they are

1. widely distributed
2. fixed at one place in soil
3. photosynthetic
4. more in number

Question-32. In the absence of plants/trees/forests

1. Global warming will be caused.
2. Animals will not get food and shelter.
3. Floods will be caused
4. All the above are correct.

Question-33. Microorganism that convert plants and animals dead parts into humus are called

1. Producer
2. Carnivores
3. Herbivores
4. Decomposer

Question-34. Micro-organisms act upon the dead plants to produce

1. Sand
2. Mushrooms
3. Humus
4. Wood

Question-35. Micro-organisms eating dead bodies of plants and animals are called:

1. scavengers
2. herbivores
3. decomposers
4. none of these

Question-36. Mushroom and other micro-organismseat

1. Brinjal
2. Rice
3. Humus
4. wax