The correct answer is C - carbon dioxide.
The distribution of gases in the earth's atmosphere is as follows:
1. Nitrogen - 78 %
2. Oxygen - 21 %
3. Argon - 0.93 %
4. Carbon dioxide - 0.038%
Nitrogen, oxygen and argon are permanent gases whose percentage in the atmosphere does not change from day to day.
Gases such as carbon dioxide, nitrous oxides, methane, and ozone are known as trace gases which make up 0.1% of the atmosphere.
Answer:
bacteria
Explanation:
you can get sick by a bacterium that is on your bathroom floor or tub or anything really.
Hope it helps <33
Carbohydrate digestion begins in the mouth with the secretion of saliva but most occurs in the duodenum as a result of the secretion of
secretin.
Answer:
Function Seeds serve several functions for the plants
Explanation:
Functions. Seeds serve several functions for the plants that produce them. Key among these functions are nourishment of the embryo, dispersal to a new location, and dormancy during unfavorable conditions.