THE WATER WORLD / FACTS AND COUNTRIES MCQS 01

THE WATER WORLD / FACTS AND COUNTRIES MCQS 01

1. What is the average salt content in a litre of seawater?
(a) 39 gm.
(b) 37 gm.
(c) 35 gm.
(d) 32 gm.
Ans: (c)
2. The world's largest lake is: 

(a) Lake Victoria
(b) Lake Superior
(c) Caspian Sea
(d) Black Sea
Ans: (c)
3. Which of the following features is not formed by running water?
(a) Valleys
(b) Tunnels
(c) Gorges
(d) Canyons
Ans: (b)
4. Which of the following are factors that effect the movement of ocean currents?
1. Earth's gravity
2. Atmospheric pressure
3. Winds
4. Salinity of the water
5. Seasonal Variations
(a) I, III and IV
(b) I, II and V
(c) III, IV and V
(d) All of these
Ans: (d)
5. Which of the following are the factors that are mainly responsible for the movements of surface oceanic currents?
1. Prevailing winds
2. Earth's Rotation
3. Earthquake activity
4. Bottom Topography
5. Difference in the density of seawater
(a) 1, 2 and 3
(b) 1, 2 and 4
(c) 1, 2 and 5
(d) 3, 4 and 5
Ans: (c)
6. Match the following:
A. Gulf stream 1. South Atlantic Ocean
B. Peruvian Current 2. South Indian Ocean
C. Benguela Current 3. North Atlantic Ocean
D. West Australian Current 4. South Pacific Ocean
A B C D
(a) 1 2 3 4
(b) 2 1 4 3
(c) 3 4 1 2
(d) 4 3 1 2
Ans: (c)
7. The 'Water table' refers to :
(a) the lower limit of the zone of saturation
(b) the upper limit of the zone of saturation
(c) the contact zone of permeable and impermeable rocks
(d) seepage of water into fissures lying below the earth's surface
Ans: (b)
8. Which of the following is a correct sequence of increasing depth?
(a) Continental shelf, Continental slope, Deep sea plains, Ocean depths
(b) Continental slope, Continental shelf, Deep sea plains, Ocean depths
(c) Continental shelf, Continental slope, Ocean depths, Deep sea plains
(d) Continental slope, Continental shelf, Ocean depths, Deep sea plains
Ans: (c)

9. Given below are names of four oceans:
1. Atlantic
2. Arctic
3. Indian
4. Pacific
The correct order of these oceans from the smallest to the biggest in terms of area is:
(a) 1, 2, 3, 4
(b) 4, 1, 3, 2
(c) 3, 4, 1, 2
(d) 2, 3, 1, 4
Ans: (d)
10. Consider the following percentages regarding the world's water resources:
1. Oceans and lakes - 95%
2. Frozen as ice - 4%
3. For man's use - 1%
Which of the above are correct percentages?
(a) 1, 2 and 3
(b) 1 and 3
(c) 2 and 3
(d) 1 and 2
Ans: (a)