According to scientific data on climate change, what levels have risen by 30% over the past 200 years?
a. ozone
b. argon
c. carbon dioxide
d. krypton

True or false, the three major scales used to measure earthquakes are mercalli scale, richter scale and magnitude scale

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

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.