When heated solid silver oxide decomposes into its elements

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

Classify this reaction: 2al+n2-> aln.