Answer:
move slowly when they are on dry land
Sadly i cannot answer that question for you, that’s something you’ll have to complete on your own. i’m pretty sure the assignment you’re doing you have to watch some video or read something in order to get your question. and you also didn’t provide a picture either!
Both are correct. Example sentences below.
In three hours, we will arrive at our house.
In three more hours, we will arrive at our house.
When using "more", it implies that there was time that was previously passed.
