Question

1. Typhoid is caused by virus true aur false 2. sugar reduces the moisture content and prevent spoilage of food true aur false 3. Our atmosphere has 21% Nitrogen true aur false 4. virtual images can be obtained on screen true aur false 5. sole of our shoes is grooved to reduce friction true aur false 6. friction force exerted by fluids is called drag true aur false 7. speed of sound in air is more than speed of light in air true or false​

Answer 1

Answer:

1) : ans false

2) true

3) false oxygen is 21%

4) false

5) true

6)true

7)false

Answer 2

Answer:

1.Typhoid is caused by bacteria.

2 . True

3.false it's 78℅

4.False

5.false

6.true

7.false speed of light is more