Answer:
Ozone
Explanation:
A molecule contains at least two different types of elements, but ozone only contains one
Answer:
1. Air warms, becomes less dense, it rises
2. Air cools down, increases density (becomes denser), it sinks
The coriolis effect makes ocean currents move<span> in a curved path</span>
Answer:
Beavers and their dams play an important role in nature. Because of the dramatic effects their dams have on surrounding ecosystems, these mammals are considered a keystone species. By constructing dams they create wetlands -- lush environments which attract fish, ducks, frogs and other creatures.
Explanation:
