The ozone protects the earth's surface from dangerous radiation. this is an interaction between:
a; atmosphere and geosphere
b; cryosphere and biosphere
c; biosphere and hydrosphere
d; cryosphere and hydrosphere

In at least two paragraphs, discuss the differences between the principles of republicanism and democracy. explain whether you think the united states is more of a republic or a democracy. refer to at least one example from the constitution

Popular culture mainly encompasses the realm of

Which best describes the“brain trust” franklin roosevelt promised to make part of his administration? a group of america’s most successful businessmen, who would fix the economya group of hoover’s economic advisers, who would undo previous damage to the economya group of smart advisers, who would assist roosevelt in guiding the nation forwarda group of military veterans, who would assist roosevelt in putting americans back to work