The correct answer is the sun.
The Earth's main energy source is the sun. The sun causes convection within the atmosphere, which in turn affects weather and climate.
I'm not exactly sure what you are trying to ask..
However, here is my take on your problem.
36 = Total before the day
8 = Total at the end of the day
36 - 8 = 28 <em>This is how many packages were left.
</em>36 = 28 + 8 <u /><em>This is a possible equation, it contains two terms (28, 8).
</em>36-8=28 <em>This is another possible equation that is equvilent to the previous suggested one.</em><em>
</em>Hope this helps!<em>
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It's pretty undeveloped and the climate isn't favorable for some people to live in. If more cities were built and stores to provide for our needs, the population would likely increase.
