A topographic map with 4 regions labeled. Region 1 is an area with no contour lines near the railroad. Region 2 is an area with few contour lines. Region 3 is an area with several contour lines close together with index contour line labeled 450. Region 4 is an area with few contour lines. Which area is the flattest?

1
2
3
4

Region one because an area that has contour lines close together means that the area is steep. but in region ones case it has no contour lines meaning the area is flat.

im pretty sure its b

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )