Answer:
Step-by-step explanation:
1. Alex
To be a negative elevation, you would have to be under the sea level. Neither of the other kids are below to sea level.
2. Statements 1, 5, and 7
Negative (-) means loss
Positive (+) means gain
Zero (0) means neither loss nor gain
3. Campground, Death Valley Hotel, and Visitor Center
All of the locations with the minus (or negative) sign in front of it are below sea level.
