Answer:
Air pressure is caused by the weight of the air molecules above
Explanation:
Air pressure is caused by the weight of the air molecules above. Even tiny air molecules have some weight, and the huge numbers of air molecules that make up the layers of our atmosphere collectively have a great deal of weight, which presses down on whatever is below.
 
        
             
        
        
        
Your pulse, is both at rest during exercise, this can reveal a heart attach and your aerobic capacity. Correct me if I'm wrong;)
        
             
        
        
        
<span>Biome is the term for the physical amount of plant material at a location. But also it could be Biota. So It would better if you've attached any options to choose.</span>