Question

______ is the percentage of nitrogen in air

★21%
★78%​

Answer 1

Answer:

There is 78% nitrogen in air

.

.

And 21% oxygen

Thanku

Answer 2

Answer:

78 percent

It's a mixture of different gases. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen..

Hope it helps you.. :)