8. Your mother is sure that you were driving too fast because she knows (2 points) a).when you arrived and the direction you came from

b).how long it took you to get home and how far you traveled

c).What time you left and how long it took you to get home

d).the direction you were driving and how far you traveled

b.

Explanation:

She would have compared how long it would take you to get where you're going, and compare it to how long it took you to get back.

B

Explanation:

i believe the correct answer from the choices listed above is the first option. the scientists need to look at the   validity of data, claims, hypotheses, and observations before  developing an argument. they base their arguments on facts that are present and they make sure they have proofs. 

explanation:

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation: