food & Food spoilage question answer.

FOOD AND HEALTH

Ans:

D1.The two main categories of diseases are communicable and non-communicable.

D2.The symptoms are extreme weakness and paralysis of body parts.

D3.The diseases that spread through mosquitoes are malaria and dengue.

D4.The girl who find difficult to see in dim light and has dry and scaly skin is suffering from vitamin A deficiency diseases.

D5.Water should not be allowed to stagnant around our homes because stagnant water is a suitable place of breeding  of  mosquitoes.

E1.Calcium and phosphorous are building bulk of bone and teeth. Deficiency of calcium and phosphorous in our body make our teeth weak, loss of shines and whiteness of teeth. It also makes our bone weak, soft and fragile.

E2.The deficiency diseases can be prevented by adopting the following measures:

Ø One should take a balanced diet containing all types of nutrients.

Ø One must follow good food practices and habits.

Ø Children must be given adequate amount of milk, milk products, and additional food items.

E3.We can prevent the spread of germs from a sick person to a healthy person by observing the following precautions:

Ø By disinfecting all the articles and clothes of infected person.

Ø By keeping our surrounding clean and hygienic.

Ø By regular medical check up

Ø By taking proper vaccine.

E4.  Isha who was suffering from Chickenpox was advised by her teacher not to come to school till she has recovered completely because chicken pox is an air borne communicable diseases. If she will come to school before complete recovery chickenpox may transmit to other students in school.

E5.Deficiency diseases are called non-communicable diseases because these diseases do not transmit from patient to healthy person by no means. Deficiency diseases are caused due to deficiency of nutrient in the body.