Health and Diseases — Science STD 8 — Question

Which of the following examples describe the change of shape on applying force?

Liquids exert pressure on the walls of the container:

Which of the following will reach the earth in greater amounts if the number of chlorofluorocarbons released into the air increases?

Which fertilizers when used in excessive amounts cause soil pollution that spreads to neighbouring water bodies and cause water pollution too?

Which of the following are transferred from one object to another when these two objects are charged by friction?

An element burns in air to form an oxide. The aqueous solution of this oxide turns turmeric paper red. State whether the element is a metal or non-metal. Name one such element.

Tyres of vehicles have grooves on their surface:

Where can the key or switch be placed in the circuit?

Asteroids revolve around the Sun between the orbits of the planets: