Question 115(iv)

Express each of the following in standard form:
The human body has 1 trillion of cells which vary in shapes and sizes.

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Solution

Cells in a human body = 1 trillon
$∵ 1 t r i l l o n = 1000000000000$

Standard form :
$1000000000000 = 1 \times 1000000000000 = 1 \times 10^{12}$

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