Wind currents multiple choice
a. send air pollution from one continent to the next.
b. keep cfcs from reaching the ozone hole.
c. eliminate the movement of dust particles from watershed to watershed.
d. circulate global carbon dioxide to regions with more vegetation for photosynthesis.

Amountain is larger than a hill, with steep sides true or false

Astate's representation in the u.s. senate is based on a) equal representation. b) the state's population. c) the state's electoral votes. d) the size of their major cities.this independent regulatory agency was created in 1974 to oversee and regulate the financing of political campaigns in the united states. a) warren cthis independent regulatory agency was created in 1974 to oversee and regulate the financing of political campaigns in the united states. a) warren commission (wc) b) federal election commission (fec) c) equal opportunity commission (eoc) d) securities and exchange commission (sec)

During which era in earth's history were the first insects? mesozoic precambrian cenozoic paleozoic