Which of the following is true about every energy transformation? A. some energy is given off as waste
B. some energy is destroyed
C. some energy is created
D. some energy is given off as heat​

Iron reacts with oxygen to produce iron oxide (rust). this reaction is represented in an equation as 4fe + xo2 → 2fe2o3. identify the value of x that will balance the equation.

Which coal field location is related to coal fields in the eastern united states and supports the theory of continental drift? eastern india southern africa western australia northern south america

What are characteristics of minerals? select 3 choices