PDF chapter test TRY NOW
1. Assertion (A): In the modern world we can’t live happing everyday.
Reason (R): Due to pollution and environmental degradation we are undergoing natural hazards and disasters.
2. Assertion (A): Sudden movement (or) trembling of the earth’s crust is called an Earthquake.
Reason (R): Movement of the tectonic plates, mass wasting, surface fault all leads to earthquake.
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