When the shales that now contain gas were formed, there was no gas in them. describe how the organic matter was transferred into gas trapped in shale.

Drastic boundary changes can occur for all of the following reasons except for a. a shift in the way a river flows b. the collapse of a government system c. a conflict between two neighboring groups d. one country's decision to sell land to another country select the best answer from the choices provide

Select the natural regions. delta denver forest georgia north america plateau stream

Explain how earths tilt and revolution around the sun affects weather and climate