Think critically vibrations cause sounds yet if you move your hand back and forth you don’t hear a sound

You can not move your hand fast enough, the lowest frequency sound is about 20 cycles per second, if you could move your hand that fast, you might hear sound.

Love, grace-

Moving your hand back and forth does not go fast enough to move the air particles fast enough to cause sound waves.

The answer is a) taiga because taigas are cold

It's have to be 12 or idk