Question

I know it's long but pls help

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Answer 1

Answer:

. What is volcano? What are its types?

Ans 2: Natural openings in the earth's crust through which molten materials, rocks, ashes, gases, etc are thrown out are called 'Volcanoes'. Volcanoes are classified into three types:

(a) Active Volcanoes: These volcanoes erupt frequently and give out gases, ash, lava, etc. e.g. Mt. Etna in Italy.

(b) Dormant Volcanoes: These are also known as 'Sleeping Volcanoes'. They erupt after a very long time. E.g. Mt. Vesuvius in Italy.

(c) Extinct Volcanoes: These are also known as 'Dead Volcanoes'. They have been inactive since a very long time. E.g. Mt. Kilimanjaro in East Africa.

Q3. What do you mean by 'Focus' and 'Epicentre'?

Ans 3: Focus: The point of origin of an earthquake is called its Focus.

Epicenter: The point directly/vertically above the focus on the earth's surface is known as Epicenter.

Q4. What are meanders?

Ans 4: Curves and large bends or loops formed by rivers in the plains are known as meanders.

Q5. Define the term 'Aggradation'.

Ans 5: The process of depositing the eroded material is called aggradation.