What type of climate covers the northern half of south america, including the amazon river basin? a. tropical b. moderate c. polar d. dry

Which theory suggested that the earth was once a signle supercontient that gradually that broke up into the contients that we know today

Which factors add to the greenhouse effect and are caused by human activities?

Which statement about portugal is not true? a. it granted independence to its last colony in 1975 b. it has avoided conflict with spain c. it was a leader in european world exploration in the 1400s d. its economy is changing from agricultural to industrial b. it has avoided conflict with spain