Which of the following is an example of long term climatic change

There is only one climate type in motion across the world at a time

This diagram show the most important texts of.

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.