英语改错题WATERThe second most important constituent of the biosp

英语改错题
WATER
The second most important constituent of the biosphere is liquid water.This can only exist
in a very narrow range of temperatures,sincewater freezes at 0℃ and boils at 100℃.This is only a tiny range compared with the low temperaturesof some other planets and the hot interior of
the earth,let the temperature of the sun.[26]
As we know,life would only be possible on the face[27]
of a planet had temperatures somewhere within this[28]
range.The earths supply of water probably remains quite fairly[29]
constant in quantity.A certain number of hydrogen atoms,which are one of the main constituents of water,are lost by escaping from the atmosphere to out space,but they are probably just about replaced by new [30]
water rising away from the depths of the earth during [31]
volcanic action.The total quantity of water is not known,and it is about enough to cover the surface of the globe [32]
to a depth of about two and three-quarter kms.Most of it —— 97% —— is in the form of the salt waters of the oceans.The rest is fresh,but three quarter of this is [33]
in the form of ice at the Poles and on mountains,and cannot be used by living systems when melted.Of the [34]
remaining fraction,which is somewhat fewer than 1% of the [35]
whole,there is 10-20 times as much stored as underground water as is actually on the surface.There is also a minor,but extremely important,fraction of the water supply which is present as water vapor in the atmosphere.

The second most important constituent of the biosphere is liquid water.This can only exist
in a very narrow range of temperatures,since water freezes at 0℃ and boils at 100℃.This is only a tiny range compared with the low temperatures of some other planets and the hot interior of the earth,let ALONE the temperature of the sun.[26]
As we know,life would only be possible on the SURFACE face[27] of a planet had temperatures somewhere within this[28] range.The earth's supply of water probably remains (xxquitexx) fairly[29] constant in quantity.A certain number of hydrogen atoms,which are one of the main constituents of water,are lost by escaping from the atmosphere to out space,but they are probably just about replaced by new [30]
water rising away from the depths of the earth during [31] volcanic ERUPTIONS (action).The total quantity of water is not known,and it is JUST about enough to cover the surface of the globe [32] to a depth of about two and three-quarter kms.Most of it —— 97% —— is in the form of the salt waters of the oceans.The rest is fresh,but three quarter of this is [33] in the form of ice at the Poles and on mountains,and cannot be used by living systems when melted.Of the [34] remaining fraction,which is somewhat fewer than 1% of the [35]
whole,there is 10-20 times as much stored as underground water as is actually on the surface.There is also a minor,but extremely important,fraction of the water supply which is present as water vapor in the atmosphere.