Answer:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.
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Answer: The stratosphere!!
Single cell organisms can reproduce very quickly
Answer:
Percentage by mass of calcium carbonate in the sample is 93.58%.
Explanation:
Assumptions:
- calcium carbonate was dissolved completely and the amount of carbon dioxide released was proportional to the amount of calcium carbonate.
- the sample did not contain any other compound that released or reacted with carbon dioxide.






given the equation of the reaction:

from assumption:
amount carbon dioxide = amount of calcium carbonate

reacting mass ( m ) = Molar Mass ( M ) * Amount ( n )

m = 0.04938397
* 100
= 4.93839 
percentage by mass of CaC
=
.
Answer:
Magnetism, and electrical charge, and gravitation are examples of forces that act at a distance. There are other such forces at the atomic level.