The earth is constantly spinning on its axis, like you might spin a basketball on your finger.

it is this spinning of the earth that causes
a) the summer-time heat.
b) the need for a leap year.
c) the changes in the seasons.
d) the cycle of night and day.

b) the inside picture would look at a very high temperature in a very low ph

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.