Water: A Precious Resource — Science STD 7 — Question

Take a glass prism. Allow a narrow beam of sunlight to pass through a small hole in the window of a dark room to fall on one face of the prism, what will happen to the light?

Mention the use of dried sludge.

In the life history of silk moth as, Egg ➝ Larva (or caterpillar) ➝ Pupa ➝ Silk moth which actually makes the silk fibre?

Why did my cat have trouble chewing its food?

Put a layer of mulch (leaves, barks, etc.) around the plants and trees. Give reasons.

We should not eat hurriedly. Give reason.

Name the organism responsible for converting atmospheric nitrogen into soluble forms.

Name the common method of reproduction in bacteria.

Name the three processes involved in treatment of wastewater.

Which type of cloth should be preferredin the month of June?