The Milky Way Galaxy is visible as a bright region in the night
sky. Modern telescopic observation has made it possible to
discover that the brightness of the Milky Way Galaxy is due
primarily to which structure?

a. high energy compounds

b. large numbers of stars

c. extremely reflective ice particles

d. clouds of hot gas

What are chlorofluorocarbons made of

Which sequence correctly shows the path of carbon dioxide during repiration?

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.