a fossil was analyzed and determined to have a carbon-14 level that is 50 % that of living organisms. the half-life of c-14 is 5730 years. how old is the fossil?

Match the types of competition to their descriptions.

Microorganisms are involved in each of the following processes excepta. smog production. b. food production. c. infection. d. o2 production. e. decomposition of organic material.

Which of these statements are true about scientific theories and hypothesis