5. What percentage of energy generation is produced by fossil fuels? sc.7.P.11.2
to
(A) 19.5%
B) 33.2%
66.9%
D 86.4%

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

Identify and describe the three ways that mutations affect organisms.