The contact of two air masses differing sharply in humidity originates:

(A) Tropical cyclones

(B) Inter tropical convergence

(C) Temperate cyclones

(D) Tropospheric instability

The UN census Bureau has projected world population in 2050 to be around:

(A) 8850 million

(B) 9346 million

(C) 8246 million

(D) 7590 million

Which one of the following is a fresh water fish?

(A) Pomfret

(B) Rohu

(C) Sardine

(D) Salmon

More than 90% of the rock forming minerals in the earth's crust consist of:

(A) Silicates

(B) Oxides

(C) Carbonates

(D) Sulphurides and sulphates

Which of the following is the largest island?

(A) Sumatra

(B) Madagascar

(C) Honshu

(D) Cuba

When the sun is nearest to Earth, Earth is said to be in:

(A) Aphelion

(B) Perihelion

(C) Apogee

(D) Perigee

Where is the Doldrums Belt located?

(A) Near the equator

(B) Near the poles

(C) Near the tropic of Cancer

(D) Near the tropic of Capricorn

The most important activity of the Tundra region is:

(A) Fish farming

(B) Cattle rearing

(C) Hunting

(D) Cropping