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Which are the largest and oldest trees in the world?

Redwood Tree

Conifers are cone bearing trees. Conifers include pines, firs, redwoods etc.  There is a broad band of coniferous forests that stretches around the world just below the Arctic Circle. Most conifers are evergreens. This does not mean that their leaves never fall off. In fact each leaf of a conifer lives for about three or four years.

Conifers are the largest and oldest trees in the world.  The coast redwoods that grow on the coastal plains of California, USA, are the world's tallest trees.  Many of them live for about 1,800 years and grow to a height of 60-80 metres (196-262 feet).

The world's most massive trees are the giant redwoods. They are also called Giant Sequoias, California Big Trees etc., they grow to a height of 75 to 80 metres (245-262 feet) with a girth (width) of about 23 metres (75 feet) near the base.

A giant redwood tree in the Sequoia National Park in California.  Visitors look like dwarfs in front of these trees.

The oldest trees in the world are the Bristle cone pines. These short, rather twisted, mountain trees live for over 4,000 years.  The oldest living specimen is named "Methuselah" and is over 4,600 years old.  It is in California.


Why do synthetic fabrics dry so quickly?

Synthetic fibres are made artificially. They are solid, smooth and straight in structure unlike a natural fibre like cotton which is hollow. So when synthetic fabrics are soaked in water, only the surface of the fibres gets wet as water does not enter the body of the fibre. That is why these fabrics absorb very little amount of water and dry quickly as the water drips away. Such fabrics are also known as 'Drip Dry".