Question 1

What is our basic life support system?

Accepted Answer

Environment provides us the air we breathe, the water we drink, the food we eat and the land where we live. Therefore, it is our basic life support system.

Question 2

Which of the following is a natural ecosystem?

Accepted Answer

Forest is a natural ecosystem as it develops naturally without direct human interference, whereas aquarium, crop field, and park are man-made.

Question 3

Which of the following is NOT a natural component of the environment?

Accepted Answer

Church is a human-made structure created by people, whereas land, air, and water are natural components of the environment.

Question 4

Which of the following is a human-made environment?

Accepted Answer

Road is constructed by humans, making it a part of the human-made environment, while mountain, sea, and forest are natural.

Question 5

Which of the following is a threat to the environment?

Accepted Answer

Growing population increases demands and puts pressure on natural resources, making it a major threat to the environment.

Environment — CBSE Class 7 Social Science Important Questions & Revision Notes