b. compressed ocean basins by continental drift
c. increased precipitation over the oceans
d. ncreased use of irrigation on land
E none of the above
It needs to actually warm first before anything can occur.
Well, the Earth is warming and water above 4°C expands when warmed so you got that one right. However, ice floating on the ocean that melts does will not raise the sea level as a floating object just displaces the amount of water equal to its mass. However land ice such as glaciers and the ice sheets on Greenland and Antarctica will certainly raise the ocean level as they melt. There is some evidence that irrigation may be also causing the seas to rise as it takes water from within the Earth and puts it into the air and into the streams where it eventually ends up in the rivers.
The link below contains a graph near the end of the article showing how the ocean level has been rising for the last century.
the answer is A because melting ice on land provides a net gain of water to the oceans and warming temperatures means more heat is absorbed by oceans and this drives thermal expansion because warmer water takes up more space.
it is NOT B because global warming does not influence continental drift
it is NOT C because precipitation is derived from the evaporation of water from the oceans so there is no net gain in water
it is NOT D because most of the water is taken up by crops etc. There is no net gain of water by oceans through irrigation.
Well get yourself a cool boat, like Kevin Costner in water world.
Parts of Antarctica are gaining greater volumes of ice, so if we are experiencing "global warming", I doubt sea levels will change by any significant amount, and they haven't in the last 30 years or so.
http://www.forbes.com/sites/jamestaylor/...
a. melting ice and thermal expansion
b. compressed ocean basins by continental drift
c. increased precipitation over the oceans
d. ncreased use of irrigation on land
