Gives plants nutritions and help them to grow<span />
The sun is a source of energy for all living things.
Answer: Austyn's heart rate is up quite a bit compared to Shanice which means either he was working out harder or since he's a male he has a larger heart which need more blood through the body. The heart rate is affected by how hard you work out? The size and possibly the condition of your heart?
Explanation:
Carbon dioxide and photosynthesis
