AP BIOLOGY

ECOLOGY

CHEMICAL CYCLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where is most of Earth’s fresh water?
A
lakes
B
rivers
C
ocean
D
ice caps and glaciers
Explanation: 

Detailed explanation-1: -The Antarctic ice sheet holds about 90 percent of the fresh water that exists on the Earth’s surface.

Detailed explanation-2: -And, of the total freshwater, over 68 percent is locked up in ice and glaciers. Another 30 percent of freshwater is in the ground. Fresh surface-water sources, such as rivers and lakes, only constitute about 22, 300 cubic miles (93, 100 cubic kilometers), which is about 1/150th of one percent of total water.

Detailed explanation-3: -On the planet earth most of the freshwater exists as ice caps and glaciers. Out of the remaining freshwaters, the largest proportion. A) Is found in atmosphere as moisture and clouds.

Detailed explanation-4: -Most of Earth’s fresh water is locked in ice Most of that fresh water (68.7%) is frozen in glaciers and ice caps. Two ice sheets, the Antarctica Ice Sheet and the Greenland Ice Sheet, contain more than 99% of the ice on Earth’s surface.

Detailed explanation-5: -Glaciers and polar ice caps store the maximum percentage of freshwater (69%), followed by ground water (30%), followed by rivers (0.33%), and lastly, the atmosphere (0.035%).

There is 1 question to complete.