How many percent of the total global carbon is found dissolved in the oceans (in $\%$)?

Which of the following is the natural reservoir of phosphorus?

Choose the correct sequence of transitional communities in Xerarch succession.

The amount of nutrients,such as carbon,nitrogen,phosphorus,calcium,etc.,present in the soil at any given time is referred to as $..........$.

The oxygen concentration at the floor of the deep ponds and lakes is very low because of the

Which of the following is a functional aspect of an ecosystem?