Which statement best describes the distribution of human populations on the earth

What happens to rock when acid reacts with it?

The middle east links which two continents? ●asia and europe●europ and africa●africa and asia●africa and australia

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.