Whats is correct definition of urban center

Match the people with the descriptions.

The type of cloud shown here may produce heavy rainfall. this type of cloud most likely occurs in an area of the sub-saharan that is a) often dry. b) often wet. eliminate c) very windy. d) usually cool.

Music the height of a wave or the amount of the wave carries is the amplitude. a.air b.nodes c.speed d.energy