Some factors that reduce the activity of the kidneys leading to accumulation of poisonous wastes in the body are mentioned below. Select the INCORRECT option.

Correct option is A

The correct answer is (A) Not smoking.

Explanation:

• Not smoking is beneficial for kidney health and does not reduce kidney activity. On the contrary, avoiding smoking helps maintain proper kidney function by reducing the risk of conditions like hypertension and atherosclerosis, which can damage the kidneys.
• The other options, however, can lead to reduced kidney activity and accumulation of waste products in the body:

1. Restricted blood flow to the kidney:
• Reduced blood supply (e.g., due to hypertension, atherosclerosis, or dehydration) impairs kidney function, leading to waste buildup.
2. Injury:
• Physical trauma to the kidney can impair its filtration ability, leading to reduced kidney activity.
3. Infection:
• Kidney infections (e.g., pyelonephritis) can damage kidney tissue, reducing its efficiency in filtering waste products.