Prominences and flares on the sun can best be described as
a. electrically charged particles
c. cooler areas on the sun
b. the effect of earth s gravitational pull on the sun
d. auroras select the best answer from the choices provided

What characteristic of the basin that feeds the congo river system affects movement in central africa? a. the center of the basin is a dense rain forest. b. it is the center of ethnic conflict in the area. c. wildlife on the savanna makes it too dangerous to travel. d. the basin is surrounded by desert.