Answer: It's one, I just did a test with that question in it and I got a 100.
Hope this helps!
It's B. increased air temperature
Answer:
If I were able to repeat the lab and do it differently I would try to do two different things to improve it. I would try to create the model in a simpler manner that allowed me to better see how the erosion factored in. I would also try to take more detailed notes on it if I were to repeat it.
Explanation:
Here's a map I hope it helps I wasn't sure how to explain it