Now you Know - Fact Book - General Knowledge 298

Now you Know

The average person has 100,000 hairs on his/her head. Each hair grows about 5 inches (12.7 cm) every year.

There are 60,000 miles (97,000 km) in blood vessels in every human.

Antipodes
A region or place on the opposite side of a point on the earth.

Anticyclones
Winds which blow outward from the center.

Aphelion
Position of the earth in its orbit when is at the maximum distance from the sun.

Archipelago
A cluster of islands, e.g., pearl islands in the gulf of panama.

Atoll
Coral reef resembling a horse shoe, enclosing a lagoon.

Axis
An imaginary line joining north and south poles.

Avalanche
A vast mass of snow mixed with earth or stones.

Biosphere
Animate or inanimate organic kingdom on earth.

Canyon
A deep valley cut by a river through a mountain region, e,g., the grand canyon of the colarado river in the usa.

Continental shelf
Land adjoining a continent submerged in the sea.

Cyclones
A low pressure system area in which the wind blows spirally inward.

Crop rotation
Growing different crops needing different minerals for their growth in the same piece of land in order to get more yield.

Date line
An imaginary line pointing north-south approximating to the meridian 180 (east or west) where the date changes by one day the moment it is crossed.

Delta
Alluvial deposit shaped like greek letter, formed at the mouth of the river, where it falls into the sea, e.g., the sunderban delta.

Dew
Condensed atmospheric water vapours due to the cooling of the air.

Dry farming
Growing of crops in low rainfall areas by moisture conservation, crop rotation but without irrigation.

Equator
An imaginary line dividing the earth into two equal parts.

Equinoxes
The day on which nights and days are of equal duration, e.g., march 22 and september 23.

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A boeing 707 uses four thousand gallons of fuel in its take-off climb. .. More >>

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