Answer:
20.9 percent
Around 78% of the air is nitrogen gas, and only 20.9% is oxygen.
Explanation:
20.9 percent
Around 78% of the air is nitrogen gas, and only 20.9% is oxygen.
Hope this helps.
Which organ of the digestive system does not directly contact food?
The pancreas does not directly contact food.
Hope this answers your question!
Answer:
I need the graph to be sure
Explanation:
