Strenuous muscular is just a fancy way to say exercise. As the muscles are used more often the need more oxygen, so that is why your breathing rate increases while doing "exercise".
I believe the answer is c. plate movement and convection currents
Hi!
Some of the most common causes of iron deficiency anemia include chronic blood loss (chronic kidney deisease) and loss of iron in the blood.
Hi!
The answer is "the heart"
Hope this helps!
-Payshence xoxo
Cutting down trees in the forest to make furniture because trees produce oxygen
