Gujarati
12.Ecosystem
normal

The reservoir pool of carbon is

A

Air and water

B

Fossil fuels

C

Rocks

D

All of these

Solution

(d)Carbon is present in the abiotic environment in following forms  $(i) $ $CO_2$ in air or atmosphere $ (ii) $ Dissolved $CO_2$ or carbonic acid and bicarbonate in water or hydrosphere $(iii)$  Carbonates and graphite in the rocks.

Standard 12
Biology

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