What do you call the missing parts of the rock record? are these events occurring anywhere in the world? explain.

Which of the following is an advantage of solar energy?

Procedure in pregnancy to have access to fetus. what do you call this procedure?

You have trained year for a marathon. in your first attempt to run a marathon, you decide that you want to complete this 26-mile race in 4-5 hours. a. what is the length of a marathon in kilometers (1mile= 1.6 kilometers). b. what would your average speed have to be to complete the race 4.5 hours? give your answer in kilometers per hour.