Air is a mixture of 78% nitrogen, 21% oxygen and 1% other gases. the pressure of air is 1.013 x 105 pa. what then, is the pressure of nitrogen in the air?

question 2 options:

2.12 x 104

7.9 x 105

1.01 x 103

7.9 x 104

there are two significant figures.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.