At mid-ocean ridges,
a. the crust is older.
b. sea-floor spreading occurs.
c oceanic lithosphere is destroyed.
d. tectonic plates are colliding

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

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.