Answer:
Its based on their physical properties
Explanation:
Answer:
There are many methods used by the scientists to study the change of earth's atmosphere and climate over the past million years. The study is called paleoclimatology. Since there are no measurement tools during those era, it studies the past by using proxy data. Proxy data includes earth's sediments, tree rings, historical archives, ice cores, and etc.
Explanation:
The answer is B. Natural selection will find a way to affect one, then that one will affect many others.
Cells make up the basic structure of an organism, and they perform basic life functions for the organism.
^the first one
