1. The oceans consist of salt water. Yet evaporation of ocean water makes clouds, and clouds make rain, which is fresh water. Why is there no salt in rain? 2. The Amazon River Basin is a giant...

1. The oceans consist of salt water. Yet evaporation of ocean water makes clouds, and clouds make rain, which is fresh water. Why is there no salt in rain?

2. The Amazon River Basin is a giant watershed with an area of about 6 million square kilometers. What does runoff in the Amazon River Basin flow toward?