Which of the following trophic levels are occupied by a sparrow?

Bamboo plants grow in a forest. What will be their trophic level?

Who defined ecology as the study of structure and function of nature?

In a forest ecosystem,green plants are .........

If the plant producers die in an ecosystem,then the system is

Consider the following statements about the carbon cycle and choose how many statements are correct?
$(a)$ The atmosphere contains $71\;\%$ of the total global carbon.
$(b)$ Decomposers contribute substantially to the $CO_2$ pool by processing waste materials and dead organic matter from land or oceans.
$(c)$ $4 \times 10^{13}\; kg$ of carbon is fixed through photosynthesis annually.
$(d)$ There is no respiratory input into the atmosphere.
$(e)$ Carbon constitutes $49\;\%$ of the dry weight of organisms.