Author Question: Organisms that can survive at very low temperatures are referred to as A) frostophiles B) ... (Read 116 times)

Zulu123 · **on:** Jul 27, 2018

Organisms that can survive at very low temperatures are referred to as

A) frostophiles
B) freezophiles
C) hypothermaphiles
D) psychrophiles

Question 2

What is Olbers' paradox and what is its resolution?

What will be an ideal response?

pangili4 · **Reply #1 on:** Jul 27, 2018

Answer to Question 1

D

Answer to Question 2

If the universe were infinite and unchanging, the night sky should be as bright as the Sun because every line of sight should eventually end up looking at the surface of a star somewhere and the total of all this light would make for a uniformly bright sky. Yet clearly it becomes dark when the Sun sets and that is the paradox. The resolution to this is for the universe to be either finite or changing. In particular, if the universe had a beginning then we can only see a finite number of starsthose that lie within our cosmological horizonand thus we can have a dark night sky.