Global warming is most likely occuring due to an increase in?
a. carbon dioxide and methane gases in the atmosphere
b. oxygen and nitrogen gases in the atmosphere
c. ultraviolet radiation and x rays reflected from earth
d. visible light and radio waves reflected from earth

Why are fossils of organism's from the phanerozoic eon much more likely to be found than fossils of organisms from any other eon? a. more organisms present during the phanerozoic eon had soft body parts. b. organisms present during the phanerozoic eon were all microscopic. c. more organisms present during the phanerozoic eon had hard body parts. d. organisms present during the phanerozoic eon are the most ancient life forms.

What role did the waterways of europe play in development of europe's economy

Witch of the following volcano hazards is made up of rocky particles about the size of a grain of sand