Secondary School (English Medium) (5 to 8) Class 7 - CBSE Question Bank Solutions

Explain how forests prevent floods.

What do decomposers do in the forest?

Explain the role of forest in maintaining the balance between oxygen and carbon dioxide in the atmosphere.

Explain why there is no waste in a forest.

List five products we get from forests.

The insects, butterflies, honeybees and birds help flowering plants in ______.

A forest is a purifier of ______ and ______.

Herbs form the ______ layer in the forest.

The decaying leaves and animal droppings in a forest enrich the ______.

Explain why there is a need of variety of animals and plants in a forest.

In the figure, the artist has forgotten to put the labels and directions on the arrows. Mark the directions on the arrows and label the diagram using the following labels:

clouds, rain, atmosphere, carbon dioxide, oxygen, plants, animals, soil, roots, water table.

Which of the following is not a forest product?

Which of the following statements is not correct?

Micro-organisms act upon the dead plants to produce.

Cleaning of water is a process of removing ______.

Cleaning of water is a process of removing ______.

How would you test the presence of starch in leaves?

HCl, HNO₃, C₂H₅OH, C₆H₁₂O₆ all contain H atoms but only HCl and HNO₃ show acidic character. Why?

When you place a natural fibre in a flame it ______.