Why the climate is so hot near the equator?

Wich of the following is not likely to appear on a map

In the diagram below, ab and bc are tangent to o. what is the measure of

When geographers describe how two places are related to each other spatially, they are describing a. where the places are located in relation to one another b. what kinds of natural environments are around each place c. how each place is changing over time d. what kinds of cultures are in each place