Answer:
People, fossils fuels,land,living things
Explanation:
"A gas is cooling to its boiling point and becomes a liquid" is the answer.
Condensation is the process where a gas becomes a liquid, like after a hot shower, there is fog on your mirror that slowly turns into water droplets after you've turned off the water.
NASA did not invent the smoke detector.
D. Water light and CO2 are needed for the process of photosynthesis.