WorksheetsAir and Water
Total questions: 28
Worksheet time: 17mins
Q1. Which of the following gases protects us from harmful sun rays?
(a) Carbon dioxide
(b) Nitrogen
(c) Ozone.
Q2. The most important layer of the atmosphere is?
(a) Troposphere
(b)Thermosphere
(c) Mesosphere.
Q3. Which of the following layers of the atmosphere is free from clouds?
(a) Troposphere
(b) Stratosphere
(c) Mesosphere
Q4. As we go up the layers of the phere, thatmose pressure?
(a) Increases
(b) Decreases
(c) Remains the same.
Q5. When precipitation comes down to the earth in the liquid form, it is called?
(a) Cloud
(b) Rain
(c) Snow
Q6. (a) is the most important layer of the atmosphere.
Q7. (a) is the second most plentiful gas in the air.
Q8. Exosphere has very thin air, and gases like __________ and ___________ float into the space
from here.
(a)
Q9. (a) gas protects us from the harmful effect of the sun rays.
Q10. Westerlies and Easterlies are the examples of (a) wind.
Q11. The process by which water continually changes its form and circulates
between oceans, atmosphere and land
(i) Water cycle
(ii) Tides
(iii) Ocean currents.
All of these
Q12. Generally the warm ocean currents originate near?
(i) Poles
(ii) Equator
(iii) None of these.
Q13. The rhythmic rise and fall of ocean water twice in a day is called
(i) Tide
(ii) Ocean current
(iii) Wave
None of these.
Q14. Water below the ground is known as?
a) pure water
b) ground water
c) river water
d) none of these
Q15. During low tides,
a) water recedes from the shore
b) water covers much of the shore
c) Both (a) and (b)
d) none of these
Q16. The Japanese word which means ‘Harbour Waves’
a) Tsunami
b) Sea wave
c) Ocean wave
d) None of these
Q17. The largest Tsunami wave travels at the speed of
a) more than 600 km per hour
b) more than 500 km per hour
c) more than 700 km per hour
d) more than 100 km per hour
Q18. Labrador and Gulf stream are the examples of
a) Tides
b) Ocean currents
c) Tsunami
d) Waves
Q19. Which day is celebrated as the World Water Day?
22 nd March
21st March
26th May
23rd April
Q20. Point in the Andaman and Nicobar Islands got submerged after the tsunami of 2004.
(a)
Q21. How much is the percentage of Nitrogen in air?
0.03 %
78 %
21 %
78.5 %
Q22. The covering of air around the earth is called ____________.
water vapour
atmosphere
Q23. Stratosphere contains a layer of which gas?
Nitrogen
Ozone
Oxygen
Carbon
Q24. _________ from air is used for breathing and burning.
Carbon dioxide
Oxygen
Q25. Generally the warm ocean current originate near..............
Equator
Poles
None of these
Q26. .............. Of the earth surface is covered by water.
One-Fourth
Two-Forth
Three-Forth
Q27. Example of Hot Ocean current..........
Labrador
Peru (Humboldt)
Gulf Stream
Q28. Can you identify this..........
Rock cycle
Rainfall
Water Cycle
Plant cycle
