Question

4. True or false ( 1 x5 )

a. Plants which synthesis their food are called saprotrophs.

b. The tongue help in mixing food with saliva.

c. Air moves from a region of low pressure to a region of high pressure .

d. Tooth decay is caused by the presence of a base.

e. Polythene bags and plastics pollute the soil.​

Answer 1

Answer:

1-true

2-true

3-false

4-false

5-true

Answer 2

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a. False. Plants which synthesise their own food are called heterotrophs.

b. True.

c. False. Air moves from region of low pressure to reason of high pressure.

d. False. Tooth decay is caused by the presence of an acid.

e. True.