SSLC (English Medium) Class 8 - Tamil Nadu Board of Secondary Education Question Bank Solutions

The degree of water vapour present in the atmosphere is known as__________.

Mist is denser than ______.

Match the following

Evaporation refers to

1. The process in which the gaseous form of water changes into liquid form
2. It refers to the process in which the liquid form of water changes into a gaseous form.
3. Water boils at 100o C temperature but, it actually begins to evaporate at 0o C.
4. It is responsible for the formation of clouds.

Water boils at 212° F temperature but, it begins to evaporate at 32° F.

Mist is not the tiny droplets of water hanging in the air.

Define “ hydrological cycle”.

How is the dew formation takes place?

Explain the different stages involved in the hydrological cycle.

Distinguish between evaporation and transpiration.

Find out the missing components of hydrologic cycle in the given diagram and fill it up appropriately.

People move from _______ to _______ mainly in search of better jobs.

The movement of a person based on his free will and desire to live in a better place is called _________ migration.

Cities and towns are the major polluters of environment.

Cities and towns are the major polluters of environment.

Transhumance is also referred as seasonal migration.

What are the different types of migration? Explain.

______ percentage of nitrogen is present in the air.

Tsunami in Indian Ocean took place in the year _________.

The word Tsunami is derived from __________ language.