Which us region historically has been dependent on the entertainment, software and aerospace industries as a part of its economy?

It is the west coast: california,oregon,nevada

B. to study the spatial patterning of forests and forests fires and plan for better use of fire fighting resources in the u.s.

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.