Answer:
Jefferson lived to the ripe old age of 83, but his health had been declining since 1818, when he visited Warm Springs, Virginia, to find relief for his rheumatism in the mineral baths. By some means, he contracted a nasty infection on his buttocks. 2 This boil on his "seat" was probably more than furunculosis.
Explanation:
It's the fact that water expands as it freezes so ice that forms on the surface stays on the surface because it's less dense than the liquid water, if it got denser when it froze the ice would sink to the bottom and thus the fish would die. So because it expands the ice stays on top, and water stays at the bottom where the fish can stay alive.
Discounting the future is a psychological bias that applies to students who do not spend sufficient time studying.
<h3>What is psychological bias?</h3>
A psychological bias refers to the tendency to form decisions or irrationally take action. This implies people make decisions in an unknown way.
Psychological bias affects the decisions and judgments made by people because of error in their thinking as a result of processing and interpreting information.
Hence, discounting the future is a psychological bias that applies to students who do not spend sufficient time studying.
Learn more about psychological bias here : brainly.com/question/24053333