Question

1. What is a natural disaster? Give examples.
2. How does an earthquake occur?
3. What are the causes of floods?
4. Differentiate between focus and epicentre.​

Answer 1

Earthquake occur when tectonic plates collide .

causes of flood:-

damage of life.

damage of property.

Answer 2

Answer:

1. A NATURAL DISASTER IS A MAJOR BAD EVENT CAUSED BY THE NATURAL PROCESSES OF THE EARTH. EXAMPLE - TORNADOES, HURRICANE

2. EARTHQUAKES ARE USUALLY CAUSED WHEN ROCK UNDERGROUND BREAKE ALONG A FAULT.

3. OVERFLOWING RIVERS

BROKEN DAMS

A LACK OF VEGETATION

MELTING SNOW AND ICE

4. THE FOCUS IS THE POINT WITHIN THE EARTH WHERE SEISMIC WAVES ORIGINATE WHEREAS EPICENTRE IS ON THE EARTH'S SURFACE DIRECTLY ABOVE THE FOCUS.