Question 1.
Which is the earth consisting of solid portion?
(a) The Atmosphere
(b) Hydrosphere
(c) The Lithosphere
(d) All of these
Answer
Answer: (c) The Lithosphere
Question 2.
Which is the largest continent?
(a) Asia
(b) Africa
(c) Australia
(d) None of these
Answer
Answer: (a) Asia
Question 3.
What is biosphere?
(a) Narrow zone
(b) Broad zone
(c) Both (a) and (b)
(d) None of these
Answer
Answer: (a) Narrow zone
Question 4.
Which gas is responsible for global warming?
(a) O2
(b) CO2
(c) N2
(d) H2
Answer
Answer: (b) CO2
Question 5.
The Arctic Circle passes through
(a) Asia
(b) Europe
(c) North America
(d) All of these
Answer
Answer: (d) All of these
Question 6.
Which longest river flows through Africa?
(a) The Ganga
(b) The Yamuna
(c) The Nile
(d) None of these
Answer
Answer: (c) The Nile
Question 7.
Which of the following is the smallest continent?
(a) Africa
(b) Asia
(c) Australia
(d) Antarctica
Answer
Answer: (c) Australia
Question 8.
Where is more than 97% of water found on the earth?
(a) In rivers
(b) In wells
(c) In ocean
(d) None of these
Answer
Answer: (c) In ocean
Question 9.
Why do humans not use the ocean water?
(a) Too sour
(b) Too salty
(c) Too sweet
(d) All of these
Answer
Answer: (b) Too salty
Question 10.
The earth surrounded by a layer of gases is called
(a) The lithosphere
(b) The atmosphere
(c) The hydrosphere
(d) All of these
Answer
Answer: (b) The atmosphere
Question 11.
Which gas is the major constituent of the atmosphere by percentage?
(a) Oxygen
(b) Carbon dioxide
(c) Carbon monoxide
(d) Nitrogen
Answer
Answer: (d) Nitrogen