Which of the following compounds does not contain molecules? a. h2 b. nacl c. co2 d. h2o

Smog is the term used to describe the combination of fog and smoke

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.

Non renewable resources like petroleum eventually