Which answers choice is correct? 46. Which phrase best describes the wavelength of
a sound wave in air at STP?
(1) inversely proportional to its amplitude and
inversely proportional to its frequency
(2) inversely proportional to its amplitude and
directly proportional to its frequency
(3) independent of its amplitude and inversely
proportional to its frequency
(4) independent of its amplitude and directly
proportional to its frequency
um

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !