Birds, insects, and wind are all things that help plants by doing what

The 5th term in a series of even number that begin 3x

Name one type of data that h-r diagrams do not show.

Which of these is a drawback of using natural gas? a. it is fairly safe for use in homes.b. it burns more cleanly than crude oil products.c. scientists have developed new ways of extracting it.d. during its extraction, groundwater can be contaminated.