Question 1.
Which one of the following is a basic life support system?
(a) Music system
(b) Environment
(c) Transportation
(d) None of these
Answer
Answer: (b) Environment
Question 2.
Which one of the following is created by nature?
(a) Cars, scooters and buses
(b) Mountains, rivers and trees
(c) Roads, books, pen and copies
(d) All of these
Answer
Answer: (b) Mountains, rivers and trees
Question 3.
The domain of water is referred to
(a) hydrosphere
(b) lithosphere
(c) atmosphere
(d) biosphere
Answer
Answer: (a) hydrosphere
Question 4.
What do plant and animal kingdom make together?
(a) Biosphere
(b) Hydrosphere
(c) Atmosphere
(d) All of these
Answer
Answer: (a) Biosphere
Question 5.
Which one of the fallowing animals is called the ship of the desert?
(a) Camel
(b) Goat
(c) Cow
(d) Dogs
Answer
Answer: (a) Camel
Question 6.
When is the World Environment Day celebrated every year?
(a) 25th December
(b) 23rd June
(c) 26th January
(d) 5th June
Answer
Answer: (d) 5th June
Question 7.
Who interact with the environment and modify it according to their needs?
(a) Human beings
(b) Animals
(c) Rivers
(d) Mountains
Answer
Answer: (a) Human beings
Question 8.
Which one of the following is not a threat to environment?
(a) Growing population
(b) Growing plants
(c) Growing industries
(d) All of these
Answer
Answer: (b) Growing plants
Match the contents of Column A with that of Column B.
| Column A | Column B |
| 1. Land | (a) lithosphere |
| 2. Animals, plants | (b) atmosphere |
| 3. Mountain, plateau and plains | (c) abiotic |
| 4. Gases, water vapour, dust | (d) biotic |
Answer
Answer:
| Column A | Column B |
| 1. Land | (c) abiotic |
| 2. Animals, plants | (d) biotic |
| 3. Mountain, plateau and plains | (a) lithosphere |
| 4. Gases, water vapour, dust | (b) atmosphere |
Fill in the blanks with appropriate words:
1. Hydrosphere is a part of …………….
Answer
Answer: biosphere
2. Two main constituents of environment are …………. and …………..
Answer
Answer: natural, man-made
3. …………. is the hard top layer of the earth.
Answer
Answer: Lithosphere
4. …………. modify the natural environment.
Answer
Answer: Human beings
Write whether the given statements are true or false:
1. Landforms are found only over continents.
Answer
Answer: False
2. Trade in which goods are exchanged without the use of money is called barter system.
Answer
Answer: True
3. Gravitational force of the earth holds the atmosphere around it.
Answer
Answer: True
4. No life can exist in biosphere.
Answer
Answer: False
5. Abiotic environment consists of living organism.
Answer
Answer: False