Some Natural Phenomena-Important Questions

1.  What are the three destructive natural phenomena?

2.  What happens when amber is rubbed with fur?

3.  Write the nature of the charges on a glass rod and silk cloth when they are rubbed with each other.

4.  What are the harmful effects of lightening on a lightening victim.

5.  What is an earthquake?

6.  What are seismic waves?

7.  How can charging take place when the substances are rubbed?

8.  What are fault zones? Name the fault zones in India.

9.  Explain construction and working of electroscope.