When we go on a busy road in the evening a lot of smoke is spread in the surroundings. We get cough and feel uneasy even when we close the nose with napkins.
Why this type of symptoms we observe? Think about it.
If these symptoms will continue, what happens?

When we go on a busy road, feel uneasy even when we close nose with a napkin. Why these symptoms we observe?

When we go on a busy road, feel uneasy even when we close nose with a napkin. If these symptoms will continue, what happens?

Observe the following table and answer the following questions. Why do we feel much relief when we drink coffee ?

Spread a piece of wet cloth in the sunlight observe after sometime where has the water in the wet cloth gone the water evaporates into the atmosphere due to the heat of the sun when we want to dry clothes quickly we wave them about or keep them under a fan how are clouds formed?

Spread a piece of wet cloth in the sunlight observe after sometime where has the water in the wet cloth gone the water evaporates into the atmosphere due to the heat of the sun when we want to dry clothes quickly we wave them about or keep them under a fan does the water in wet clothes dry up only due to sunlight or due to other reasons