Question

temperature is a measure of the average kinetic energy of particles in a substance. when air is put under high pressure, it is pushed into a smaller space. this adds energy to the air. so, the motion of the air particles increases and the air temperature rises.
the opposite happens when air pressure decreases. there is more space for the air to expand, so the particles spread out and lose energy.
complete the sentence.
when pressure increases, temperature _____. when pressure decreases, temperature _____.
options: decreases...increases; increases...increases; decreases...decreases; increases...decreases

Explanation:

From the text: "When air is put under high pressure... the air temperature rises" so pressure increase leads to temperature increase. "When air pressure decreases... particles... lose energy" (and temperature is related to kinetic energy, so temperature decreases). So the correct pair is increases...decreases.

Answer:

increases...decreases