B is the answer hope this helps
To first started living on <span>land and that is where the traits and transitions moved to water instead of land</span>
<span>I suspect that the answer is at the surface of the open ocean. This is where the evaporation of water takes place which concentrates the salts at the very surface. However, with any significant mixing, the effect might not be measureable. Nevertheless, the surface tension of the water at the surface would tend to stabilize the very surface slowing down mixing with more dilute water just beneath the surface.</span>
Businesses need to use limited resources wisely.
The importance of addressing the three questions of economics is that businesses need to use limited resources wisely. The concept of limited resources and scarcity is, in fact, a key fact to the entire subject that is economics, so the statement well represent the fundamental need we have to a good economic practise.