18. Earth rotates around its axis from:
A. North to South
B. South to North
C. East to west
D. West to East
A. North to South
B. South to North
C. East to west
D. West to East
19. Meteorologists says that Climatic Change occurs after every:
A. 5 years
B. 10 years
C. 15 years
D. 30 years
A. 5 years
B. 10 years
C. 15 years
D. 30 years
Astronomical unit: 1.48 * 10^8 km
Radar work via Ionizing, Stratosphere, Mesosphere?
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