Which one of the following is called North-easter?

(1) Cold and fast-blowing winds in the northern hemisphere that move from sub-polar to polar regions

(2) Cold and fast-blowing winds in the South Pole region

(3) Cold and fast-blowing winds from the polar region in the northern hemisphere

(4) Winds blowing towards Kazakhstan in Central Asia

The density of the earth’s atmosphere is highest in the

(1) Troposphere

(2) Stratosphere

(3) Mesosphere

(4) Ionosphere

Which of the following absorbs part of the insolation and preserves the earth’s radiated heat?

(1) Oxygen

(2) Nitrogen

(3) Water vapour

(4) Carbon-di-oxide

Cyclones are caused due to

(1) low pressure

(2) high pressure

(3) low temperature

(4) high density

What is a ‘tornado’?

(1) A very high-pressure centre

(2) A very low-pressure centre

(3) A very high ocean wave

(4) A planetary wind

Katrina is the name given to _________

(1) Satellite

(2) Star

(3) Heat wave

(4) Hurricane

In which region does rainfall occur throughout the year?

(1) Mediterranean

(2) Equatorial

(3) Tropical

(4) Temperate

The vertical movement of air is termed as

(1) wind

(2) air current

(3) air turbulence

(4) air mobility

The atmospheric layer closest to the earth is:

(1) Mesosphere

(2) Hydrosphere

(3) Troposphere

(4) Ionosphere

Frontal Rain is caused by

(1) Convection current

(2) Winds from sea

(3) Cyclonic activity

(4) Condensation of water evaporated from mountains

Smog is a combination of

(1) air and water vapour

(2) water and smoke

(3) fire and water

(4) smoke and fog