You are exploring in a cave and call out to one of your friends. you hear your echo. which interaction of sound (reflection, refraction or absorption) caused the echo and how did the sound waves move?

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

Building glycogen from glucose molecules is an example of