Approximately how close is russia to alaska

5 miles
50 miles
500 miles
5000 miles

Assuming 55 miles. But since the answer choices only give so much, definitely  try going with B. 50 miles.

Hope this helps!

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.

Ithink the answer to that would be b):