Sound wave A has a lower frequency than sound wave B, but both waves have the same amplitude. What must also be true of these two waves?
O A. Wave A is softer.
O B. Wave A is louder.
C. Wave A has a lower pitch.
D. Wave A has a higher pitch.

C

Explanation: Amplitude controls loudness, and frequency controls pitch. The more frequent the higher pitch.

a) cold, dry

explanation:

continental polar masses are cold and dry air masses because the cold air cannot hold much moisture. as they move into warmer air, they can trigger precipitation.

pretty sure it's false