Question

Air which is present in atmosphere is mixture of different gases. Can you tell how much nitrogen and
oxygen constitute in the atmosphere?

1. 95%

2. 98%

3. 99%

4. 90%​

Answer 1

Answer:

99%

Step-by-step explanation:

Answer 2

99%

Step-by-step explanation:

In our atmosphere ,the percentage of nitrogen is 78% and oxygen percentage is 21% . So,the total percentage of nitrogen and oxygen is 99% . Remaining 1% is noblevgases