AP BIOLOGY

BIOCHEMISTRY

PROPERTIES OF WATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What percentage of water on Earth is salt water?
A
50%
B
75%
C
97%
D
70%
Explanation: 

Detailed explanation-1: -Over 97 percent of the earth’s water is found in the oceans as salt water. Two percent of the earth’s water is stored as fresh water in glaciers, ice caps, and snowy mountain ranges.

Detailed explanation-2: -97% of the earth’s water is found in the oceans (too salty for drinking, growing crops, and most industrial uses except cooling). 3% of the earth’s water is fresh.

Detailed explanation-3: -Water is on and in the Earth. The vast majority of water on the Earth’s surface, over 96 percent, is saline water in the oceans.

Detailed explanation-4: -Sea water salinity is expressed as a ratio of salt (in grams) to liter of water. In sea water there is typically close to 35 grams of dissolved salts in each liter. It is written as 35 ‰ The normal range of ocean salinity ranges between 33-37 grams per liter (33‰-37‰).

Detailed explanation-5: -Most of the water on the Earth’s surface is found in oceans and seas, which constitute about 97% of the water on Earth. The rest 3% is present in rivers, glaciers and underground water.

There is 1 question to complete.