<span>
</span><span>the time or date (twice each year)
</span><span>when day and night are of equal length</span>
The answer to the question is the total surface area increases and chemical composition changes. Consider the breakdown of rock into smaller pieces, these fragments vary from huge rocks to smaller sizes. As they are so crushed and broken they tend to occupy much of the surface area than when its just a huge rock.
there are four U.S. states bordering Mexico. The four states are: Texas, New Mexico, Arizona and California.
