A TV tower has a height of 100 m. The average population density around the tower is 1000 per $km^2$. The radius of the earth is $6.4 \times {10^6}$m. the population covered by the tower is
A TV tower has a height of 100 m. The average population density around the tower is 1000 per $km^2$. The radius of the earth is $6.4 \times {10^6}$m. the population covered by the tower is
- A
$2 \times {10^6}$
- B
$3 \times {10^6}$
- C
$4 \times {10^6}$
- D
$6 \times {10^6}$
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