Available Answers

1. 1.

   State if the following statements are true or false. Correct the statement if it is false.

   1. Carbohydrates and fats are energy-giving foods.
   2. Pulses, beans, meat and fish are rich sources of fats.
   3. Minerals are needed in traces for normal body functions.
   4. A person doing physical work needs less energy and therefore less carbohydrates.
   5. A person taking inadequate amount of food is said to be undernourished.
2. 2.

   State if the following statements are true or false. Correct the statement if it is false.

   1. Tooth decay is caused by eating lots of vegetables.
   2. Always keep reading material close to your eyes.
   3. The best method of having germ-free water is to boil it for 15 minutes.
   4. Producing manure from waste by use of microorganisms is called biodegradation.
3. 3.

   Fill in the blanks.

   1. Diseases that spread through direct contact are called __________ infections.
   2. Insects that transmit disease causing germs are called __________
   3. Cold and measles are spread by _______ in the air.
   4. Dengue is caused by the bite of an infected __________ mosquito.
4. 4.

   Tick the most appropriate answer.

   1. The nutrients needed for growth and repair of the body are
      1. proteins.
      2. carbohydrates.
      3. fays.
      4. vitamins.
   2. The major source of vitamins and minerals is
      1. meat.
      2. milk.
      3. butter
      4. fruits and vegetables.
   3. calcium and phosphorus are required for
      1. healthy teeth and bones.
      2. long and black hair.
      3. haemoglobin in blood.
      4. healthy heart.
   4. carbohydrates and fats provide us with
      1. growth of body.
      2. energy for doing work.
      3. protection against disease.
      4. regulation of body functions.
   5. Which of the following is spread by droplet infection?
      1. Cholera
      2. Malaria
      3. Common cold
      4. Typhoid
5. 5.

   Fill in the blanks.

   1. ____________ prevents constipation.
   2. _____________ is a contagious viral disease in which the eye is infected.
   3. ____________ and ____________ are called energy-giving foods.
   4. Malaria is spread by an infected female _____________ mosquito.
   5. _____________ is an airborne disease caused by droplet infection.
6. 6.

   Match the following.

   COLUMN A (DISEASES)	COLUMN B (CAUSES)
   1. ringworm.	a. bacteria
   2. malaria	b. excess of food
   3. cholera	c. virus
   4. dengue	d. protozoa
   5. obesity	e. fungus