Phenol is a type of alcohol.

Vitamins are not needed in bulk by the human body. They are not responsible for providing energy and building material for the formation of new cells.

The carbohydrates are formed in the plants during photosynthesis.

Bread is known as the 'staff of life'. This is because it contains the largest share of nutrients for the least amount of money.

Potassium can be obtained from green and yellow vegetables.

Roughage is not a rich source of starch. It is a rich source of cellulose.

Proteins are known as 'body building foods'. Proteins are essential for growth as they are responsible for the repairing of cells and other body tissues.

Fats contain larger proportion of carbon and hydrogen. 

Oxygen, hydrogen and carbon make up the carbohydrates.

Vitamins A and D are fat soluble vitamins.

Cream is an example of animal fat.

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

Sunflower oil is not a source of vegetable protein. It is a source of vegetable fat.

The 'hunger center' of the body is located in the brain.

The body's requirement of protein (for an adult) is 1 gram per kilogram of body mass.  The body's requirement of protein (for an adult) is 1 gram per kilogram of body mass.