Volcanoes — Geography STD 9 — Question

What is leading to depletion of ozone layer in the atmosphere?

Why are radioactive pollutants very dangerous ?

Describe some of the important types of local winds.

Mention two effects of revolution.

Name the three types of volcanoes on the basis of the frequency of their eruption.

A volcanic eruption is one of the main causes of earthquakes.

Explain why the lines of longitude are called meridians of longitude?

What was the immediate and long term effects of the leakage of MIC gas from the Union Carbide’s pesticide factory in Bhopal?

Where is wind erosion most predominant?

Critical thinking question:
Pygmies are nomadic, lead to migratory life. Bush-man are nomads, they change their shelter in search of new pasture, food and water. Kirghiz are also nomads, they move from one place to another in search of water.
They live in different natural region but their lifestyle is similar. As a student of Geography what according to you can be the reason for their similar livelihood?