Answer: D
Explanation: This is because the coal has carbon dioxide and when it is released into the air it causes acid rain.
B. DNA is heated to separate strands
<span>First.PCR reaction</span>
Answer:
The main job of red blood cells, or erythrocytes, is to carry oxygen from the lungs to the body tissues and carbon dioxide as a waste product, away from the tissues and back to the lungs. Hemoglobin (Hgb) is an important protein in the red blood cells that carries oxygen from the lungs to all parts of our body.
Explanation:
<em>I think it is right...</em>
<em>Please make me brainliest</em>
<span>Infections
</span><span>viruses
</span>Bacteria
Mold
and so on.
