Assume that our Moon is hit by 25 million tiny meteorites every day. On average, it takes about 20 such impacts to obliterate a footprint left by an Apollo astronaut on the surface of the Moon. About how long would you estimate that it would take to erase evidence of a single footprint

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.