Welcome to the Knowledge Mouse Online Quiz
H2O Review
| Questions |
Answers |
| About how many pounds does a gallon of water weigh? |
8 |
| What percentage of Earth's water is trapped in glaciers? |
68% |
| Approximately how many billions of gallons are used in the US every day? |
400 |
| How long can a person survive withough water? |
About a week |
| Fresh water is found in the ground, about what percentage? |
30% |
| Average seawater freezes at what temperature? |
-2 degrees calcius |
| Consuming contaminated/unsafe water kills about how many children an hour? |
200 |
