I am not sure because there may be more context, but here is what I am guessing the answer is.
As Bryson pedaled uphill both his heartbeat and breathing rate increased. His breathing rate increases to provide the body (more specifically, exercising muscles) with oxygen at a higher rate and his heart rate increases to deliver the oxygen (and glucose) to the respiring muscles more efficiently.
Answer:
there is no pictures or options
Explanation:
I would love to help but I need to see your options
Answer:
1. Increase afforestation
2. avoid deforestation
3. avoid coal burning
4. Avoid wild fires
An atomic nucleus contains most of the atom’s mass.
The sun (solar radiation) because the sun heats the Earth unevenly Earth's surface generates pressure differences. Wind is the result of horizontal differences in air pressure.
