Answer: in the production systems of coal-burning power plants
Crab shells are a water based carbon cycle becuase they have built in reservoirs added to their exoskeleton they add to the. Two-way carbon exchange so Be
Answer:b) The air at high altitudes are less dense, so its harder to breathe.
Explanation:
AS altitude increases, the air pressure drops. This reduces the amount of gas molecules in the air so the air becomes less dense compared to air closer to sea level.
<span>The different adrenal hormones show selectivity for different types of adrenergic receptors. This may be because the chemical structures of the adrenal hormones are such that binding is biochemically easier for the hormones at the receptors to which they show a selective affinity.</span>
Saliva is a part of the digestive system. saliva contains enzymes that help start the breakdown of food in the digestive process
