What is the origin of the energy that is released when coal burns?

What is the y-coordinate of the point that divides thedirected line segment from j to k into a ratio of 2.3? -6-557

Asap! ! ! western china, northern china and southeastern mongolia are all located in what climate zone? tropical wetdesert humid subtropical humid continental

What's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it