LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

ECOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How is carbon stored in the biosphere?
A
in the atmosphere as CO2
B
underground as fossil fuels and calcium carbonate rock
C
in the oceans as dissolved CO2
D
in soil as ammonia
Explanation: 

Detailed explanation-1: -Carbon dioxide and seawater Carbon dioxide, which is naturally in the atmosphere, dissolves into seawater. Water and carbon dioxide combine to form carbonic acid (H2CO3), a weak acid that breaks (or “dissociates”) into hydrogen ions (H+) and bicarbonate ions (HCO3-).

Detailed explanation-2: -Carbon dioxide from the atmosphere dissolves in the surface waters of the ocean. Some of the carbon dioxide stays as dissolved gas, but much of it gets turned into other things. Photosynthesis by tiny marine plants (phytoplankton) in the sunlit surface waters turns the carbon into organic matter.

There is 1 question to complete.