Question

State whether true or false

1. Alimentary canal is also called the windpipe.

2. Acetic acid is present in vinegar.

3. Basic turns blue Litmus red.

4. Tailoring a dress is a physical change.

5. Internal respiration occurs outside the cells.

6. Blood rich in oxygen is called deoxygenated blood.

7. Layering is a kind of sexual reproduction.

8. Switch is a device that only complete circuit.

9. Day and night occur because of the rectilinear propagation of light.

10. All solid metals expand equally on heating.​

Answer 1

Answer:

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Answer 2

Answer:

1. false

2. false

3. false

4. true

5. false

6. true

7. false

8. true

9. true

10. false

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