Answer:

0.3

Explanation:

Steps of construction:

Draw a line BC = 6.5 cm.

With B as a centre and 6.5 cm as radius, draw an arc above the line BC.

With C as a centre and 6.5 cm as radius, draw an arc cutting the previous drawn arc. Name the point of intersection as point A.

Verified answer

Answer:

A carbon dioxide content 0.03% in the atmosphere air.

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