Ans 1: (Master Answer)
D
Smoke released from chimneys of houses spreads in the air surrounding the houses, mainly causes air pollution.
D
Smoke released from chimneys of houses spreads in the air surrounding the houses, mainly causes air pollution.
B
Football and tyre are filled with air. Air fills the space in football and tyre, and gives them their shapes.
A
At night, land cools down faster than the sea. Now, the air above the sea is warmer than the air above the land. The warm air above the sea rises up and the cool air from the land now rushes towards the sea. This is known as land breeze.