Answer :
Answer:
oxygen
Explanation:
The oxygen makes up 21% of the atmosphere. hope it helps.
Answer:
Oxygen
Explanation:
Oxygen makes up 21% of earths atmosphere while nitrogen fills up 78%.
Answer:
oxygen
Explanation:
The oxygen makes up 21% of the atmosphere. hope it helps.
Answer:
Oxygen
Explanation:
Oxygen makes up 21% of earths atmosphere while nitrogen fills up 78%.