Your lungs infuse the blood with oxygen and get rid of the carbon diox
<span>the digestive system extracts glucose from the food you eat and deposits it in the blood </span>
<span>the circulatory system moves the oxygen, glucose, and carbon diox through our bodies enabling the cells to get the materials they need and remove the ones they dont</span>
Answer:
Natural sources include decomposition, ocean release and respiration. Human sources come from activities like cement production, deforestation as well as the burning of fossil fuels like coal, oil and natural gas.
It is sulfur, selenium, oxygen
The first choice is correct. That’s because it uses the comma to pause the sentence, so the statement and question fit together