Question

2. Write 'true' or 'false for the following:
(a) Air is a compound.
(b) Carbon dioxide is given out
during photosynthesis.
(c) Respiration needs nitrogen.
(d) The composition of air was
discovered by Lavoisier.
(e) The major component of air is
oxygen.
​

Answer 1

a) true

b) true

c) false

d) true

e) false

Answer 2

Answer:

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a) False air is a mixture.

b) True {Glucose also}

c) False respiration needs oxygen.

d) False all the scientists together discovered it .

e) False major component of air is nitrogen.