| A | B |
| This watershed is the largest in the world. | What is the Amazon Watershed? |
| Waste from farms in the Midwest empties into this river. | What is the Mississippi River? |
| This law is to restore and maintain the chemical, physical and biological integrity of the nation's waters. | What is the Clean Water Act? |
| This happens when excessive amounts of heat are added to a body of water. | What is therma pollution? |
| These are disease-causing organisms like bacteria, viruses and parasites. | What are pathogens? |
| Pollution thta comes from a single source, such as a factory, a treatment plant, and an oil tanker. | What is point pollution? |
| This process removes salt from salt water. | What is desalinization? |
| Rock formations that store underground water are these. | What are aquifers? |
| This is an area that is drained by a river. | What is a watershed? |
| 97% of all the water of the earth is in these. | What are the oceans? |
| This water hasn't sunk into the ground. | What's surface water? |
| This is the largest aquifer in North America. | What is the Ogallala? |
| This country has commissioned experiments on towing Antarctic icebergs to it to solve clean water shortages. | What is Saudi Arabia? |
| What is a structure that is built across a river or stream that prevents it from travelling downstream. | What is a dam? |
| What is the most controversial river in North America. | What is the Colorado River? |
| This type of pollution introduces chemical, physical or biological material into a water source, causing it to become degraded and unusable. | What is water pollution? |
| This pollution can come from anywhere. | What is nonpoint pollution? |
| This river has high levels of dioxin in it and is also a controversial river in the eastern states. | What is the Pigeon River? |
| This type of water is most likely to plague future generations. | What is groundwater pollution? |
| Owns the oceans. | Who is no one? |