An ecosystem creates:

Which of the following is the correct sequence in a food chain?

Which one of the following statements is incorrect for secondary succession?

Some of the nutrient cycles are labelled as below:
$I$. Sulphur cycle
$II$. Phosphorus cycle
$III$. Carbon cycle
$IV$. Nitrogen cycle
Of these,the sedimentary cycle is represented by:

Which of the following is the correct sequence for primary succession in water (hydrarch succession)?

Ecological succession represents .........