The big bang theory suggests that our universe formed approximately 13.7-13.8 billion years ago.
The scientific methods is limited to investigation physical phenomena that are observable, repeatable, falsifiable and measurable.
<span>Within the composition of stars, there are a number of distinct zones with different regimes of behavior. In the case of the Sun, the temperature profile listed above equates to that of the radiation zone, where the temperature falls over 5 million degrees Celsius. Thus the answer is B. radiation zone.</span>
<span>a. Clearcutting removes all trees in a stand, old and young.</span>