Not so long ago, people talked about global warming in apocalyptic terms—imagining the Statue of Liberty up to its chin in water or an onslaught of tropical diseases in Oslo. Recently, however, advances in our understanding of climate have moved global warming from a subject for a summer disaster movie to a serious but manageable scientific and policy issue. The greenhouse effect is nothing new; it has been operating ever since the earth formed. Without it, the surface of the globe would be a frigid –20 ℃ (–4 °F), the oceans would have frozen, and no life would have developed.
Stone does not(), and so the tools of long ago have remained when even the bones of the men who made them have disappeared without trace.
If you have someone accompanying you, ten miles () a long way to walk.
How long warning must be provided by the CO2 warning Mann before CO2 is discharged into a space ().
The short-long dashed,magenta lines parallel to York River Entrance Channel mark().
I was not thirsty despite such a long walk because I ______ some milk before leaving.
If it were two hours later, it would be half as long until midnight as it would be if it were an hour later. What time is it now?
()tankers over 100 meters long must not proceed beyond Dongbei Buoy.
If you hear more than six short blasts and one long blast of the whistle supplemented by the same signal on the general alarm,you should().
As long as 2890km of coastline had been polluted by the oil spill of the Prestige oil tanker.
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