Question 1

What is the primary role of forests in maintaining the balance of nature?

Accepted Answer

Forests provide oxygen, absorb carbon dioxide, regulate climate, prevent soil erosion, and provide habitat for numerous species, thus maintaining ecological balance.

Question 2

Which of the following is considered a producer in a forest ecosystem?

Accepted Answer

Plants and trees are producers because they prepare their own food through photosynthesis, forming the base of the food chain.

Question 3

What are animals that eat other animals called?

Accepted Answer

Animals that feed on other animals are called carnivores, which occupy higher trophic levels in a food chain.

Question 4

Which micro-organisms convert dead plants and animals into humus?

Accepted Answer

Decomposers, such as bacteria and fungi, break down dead organic matter into a dark-colored substance called humus.

Question 5

What is the topmost layer of the forest vegetation called?

Accepted Answer

The branches of tall trees forming a roof-like structure over other plants in a forest are called the canopy.

Forests: Our Lifeline — CBSE Class 7 Science Important Questions & Revision Notes