What kind of map would need to show elevation in its legend?

a political map
a road map
a physical map
a resource map

A physical map

Explanation:

Maps are essential in order for us to accurately represent a geographical area we are interested in. Maps allow us to find places, as well as describe the characteristics of a particular place. Physical maps are a type of maps that show landforms, such as deserts, mountains and plains. Therefore, these are the type of maps that would need to show elevation in their legend.

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration

incident infrared radiation is blocked. visible and ultraviolet radiation heat   earth.

earth radiates infrared radiation. infrared radiation is blocked and heats earth. visible and shortwave radiation heat earth.

earth radiates longwave radiation

longwave radiation is reflected downward longwave radiation heats earth