Because throughout the nation’s history, various people from many countries (primarily European) have immigrated to the country. For example, there were many Irish, Italian, Chinese, and German immigrants in American cities during the early 1900s. Even today, there are still some immigrants, such as those from Latin America and some Asian countries.
Consumer Spending is the answer !
<span>The San Andreas Fault is the prime one
with many other faults spreading out around it. The earthquakes are the
result of the two plates moving against each other. The San Andreas Fault is the name of California's famous break in the earths crust that causes earthquakes to occur. I know this because i did a science project on earthquakes. Hope it helps! :-)
</span>
Thermosphere is the answer