Question

Regarding the assertion and reason, choose the correct option.
Assertion [A]: Nuclear explosions majorly increase background radiation levels in the world.
Reason [R]: Nuclear explosion results in the release of radionuclides which are long lived and remain suspended in the atmosphere.

• A. Both A and R are true and R explains A
• B. Both A and R are true, but R does not explain A
• C. A is true and R is false
• D. Both A and R are false

Answer 1

The correct option is A Both A and R are true and R explains A

Nuclear explosion tests in the atmosphere are a major cause of radioactive pollution. It increases the background level of ionizing radiation throughout the world. This is because a number of long lived radionuclides are released into the atmosphere and are dispersed over long distances from the test site with the help of winds .