HELP ME PLZ Explain why it is often milder in areas such as coastal Maryland while areas such as Kansas or Iowa have more extremes in temperature? (Take into account the geographical location of Maryland and Kansas)

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.

Answertropical depression;

Answer feldspar,quartz,mica and amphibole;