A. What element all organic compounds have in common? b. What are the most common uses for most of the organic compounds?

c. Can you infer from their formulas which seem more complex, inorganic or organic compounds?

d. How does the formula of organic foods compare to the composition of organic fuels? Explain.

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.

Adesert is an example of a(n) and the gobi desert is an example of a(n) a. ecosystem biome b. biome ecosystem c. ecosystem climate d. climate biome

Write a 150word essay describing the effect of people's activities on the environment in the region.