Why does fitzgerald contrast “hard rock” with “wet marshes”? what does he mean?

B. speculate about one positive way and one negative way that this boundary has affected the geographical units it separates over time.

How many neutrons does an element have if its atomic number is 40 and its mass number is 156?

Terrence would like to reward himself after each goal he sets, but he's not sure what type of reward to choose. he's easily distracted and finds it hard to concentrate at times. which would be the best type of reward for terrence? a. a brief social network break b. a long nap c. a snack while he keeps studying d. watching a couple of tv shows