Which part of a watershed is the high point of land that separates adjacent watersheds

a. the basin
b. the divide
c. the collection area
d. the boundary

I think the answer to this is C

From our previous experiment, we examined how many drops a penny can hold - and place drops of salt water on the penny after recording 5 trials each, take the average of each solution.

The first means of speeding up reactions mentioned by the speaker is raising the enzymes