Electrically charged particles are found primarily in the . a. troposphere c. ionosphere b. exosphere d. stratosphere

These are resources that cannot be renewed after used. examples include coal petrolium and gas

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years