What is the single most important element on Earth for life? (Science)

Long ago, people who lived in coastal north africa most often interacted with

Which occurs when air is compressed? air molecules move slower. air temperature rises and air molecules move faster. air temperature decreases. air temperature decreases and air molecules move faster.

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.