Junk food is not good for health.

Dropsy is a disease caused due to adulteration in mustard oil. It is the abnormal accumulation of body fluids in arms and legs.

This is the correct option. Fats give 2.25 times more energy than carbohydrates.

All of the above mentioned products are used as milk adulterants in India. They decrease the quality of milk and make it harmful for the consumption of humans.

 Metanil yellow is a common adulterant of lentil. It is toxic in nature and has adverse effects on the liver, intestine and brain.

This is the correct option. Temporary or permanent damage to body parts causes physical diseases. Invasion of the body by other organisms causes infectious diseases. Inadequate diet causes deficiency diseases.

Different vitamins play different roles in our body. Vitamin C helps fight against diseases. Vitamin D promotes the absorption of calcium from food and helps our body use calcium for bones and teeth.

Whole grains and pulses, potatoes, fresh fruits and vegetables are main sources of roughage. Roughage does not provide any nutrient to our body, but is an essential component of our food and adds to its bulk. This helps our body get rid of undigested food.

Vitamins help in protecting our body against diseases. Vitamins also help in keeping our eyes, bones, teeth and gums healthy.

This option is correct as both statements (b) and (c) are correct.

Coconut is a rich source of fats. Oranges, lemons and green vegetables are a rich source of vitamin C.

Glucose is a monosaccharide sugar, rest are disachharides in nature.

Roughage (dietary fibers) is provided by all plant products like fruits, pulses, vegetables, etc. It acts as food for animals, helps us in getting rid of the undigested food from the body and keeps our skin healthy.

Sufficient amount of iodine is required by our body for maintaining a balanced mental status.

Sugar is the generalised name for sweet, short-chain, soluble carbohydrates, many of which are used in food.