Question

Which of the following causes infectious diseases?

• A. Pollutants
• B. Harmful lifestyle
• C. Inheritance
• D. Microorganisms

Answer 1

Answer: (D)

Microorganisms

Pollutants are the harmful oxides or chemicals which degrade the quality of the environment and causes pollution.

Harmful lifestyle affects the metabolic process of the body and lead to severe diseases and also causes ageing.

Inheritance is the transfer of characters from the parents to offsprings.

Microorganisms are the small microorganism which are not visible to naked eye and are responsible for infectious disease.

So, the correct answer is option D.