Question

I. Deficiencies or defects with which a child is born is always inherited from parents.
II. A person gets infections only from affected individuals.
III. The food we eat and the amount of water we drink also affects health.
IV. Genetic disorders, infections and lifestyle mainly affect health.

• A. Ony IV is correct
• B. I, II and IV are correct
• C. III and IV are correct
• D. I and II are correct

Answer 1

The correct option is C III and IV are correct

A person is said to be healthy, when he has a fit body, lives in harmony with others, has the ability to face stress, holds moral and spiritual values. Human health is affected by various factors like genetic disorders, infections and lifestyle.

Genetic disorders : Deficiencies or defects present in children can either be inherited from parents at birth or can occur due to changes in their genes (mutations). For example, offspring may inherit the sickle cell anemia trait from their parents. Down’s syndrome is a genetic disease due to the presence of an additional 21st chromosome in the offspring.

Infection : It is the invasion and multiplication of microorganisms in our body. Persons get infected from surroundings or from an infected individual. For example, people get Typhoid (Salmonella typhi) through contaminated food and water. A person gets Acquired Immunodeficiency syndrome (AIDS) mainly through sexual contact with an infected person.

Lifestyle : The habits of a person affects his health. The amount of water a person drinks per day or the diet he follows affects his health. Regular exercises, proper sleep and rest are also important for maintenance of good health. For example : Junk foods lead to obesity and drinking less water leads to urinary infections.