Which two factors cause one part of earth to have summer while another part has winter? a. earth's tilted axis and its revolution around the sun b. greenhouse gases and ozone in the atmosphere c. trade winds and sea breezes d. earth's tilted axis and its rotation around it

Which of the following is an accurate description of the recent political history of the democratic republic of the congo? a. religious tensions have escalated into full-scale civil war a number of times since the belgians left the country in 1960. b. the political leader who gained power after the overthrow of a corrupt dictator was assassinated. c. the military leadership felt the country was stable enough, so they permitted democratic elections to take place. d. in 1990, a dictator seized and has held power ever since.