Which planet is called “red planet”?
Which planet is called “red planet”?A. Mars
B. Venus
C. Jupiter
D. Saturn
B. Venus
C. Jupiter
D. Saturn
		A. Iron
B. Mercury
C. Nickel
D. Osmium 
		A. Jupiter
B. Earth
C. Mars
D. Venus
At what time of day is the relative humidity normally at a minimum ________________ ?
		A. When the air temperature is highest
B. Just before sunrise
C. About midnight
D. When the air temperature is lowest
		A. Petrol
B. Kerosene
C. Gasoline
D. Diesel
What is the effect of height increase over temperature?
		A. Temperature increase
B. Temperature decrease
C. Remains constant
D. None
		A. Ionosphere
B. Troposphere 
C. Stratosphere
D. Mesosphere