They need more oxygen to function, so gas exchange needs to increase
I believe the correct answer from the choices listed above is the last option. If the volatility of X is higher than that of Y, then <span>Y’s molecules experience stronger London dispersion forces than X’s molecules. All molecules has london dispersion forces. Also, the stronger the bond, the harder it is to volatilize. Hope this answers the question.</span>
Sound energy is produced when an object vibrates so an example would be a telephone ringing or someone playing a bass guitar
Answer:
For sound waves to travel, there is a requirement of medium and density of the medium is considered to be one of the factors on which the speed of sound depends. When the medium is dense, the molecules in the medium are closely packed which means that the sound travels faster.
Explanation:
When looking for distance you multiply speed by time
So 15 x 2 = 30
30 is the distance between his house and school
