Which of the following is the source of carbon to plants
Atmospheric $CO_2$
$CO_2$ of carbonate rocks
Fossils
All the above
(a)Because $CO_2$ is utilized in photosynthesis of plants.
For recycling of materials which one is most necessary
The rate of decomposition of detritus is affected by the abiotic factors like availability of oxygen, $\mathrm{pH}$ of the soil substratum, temperature etc. Discuss.
Plants of salty seashore wet-lands are called
The primary producers of the deepsea hydrothermal vent ecosystem are
In plant succession, when climax community is reached, the net productivity
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