15. Which of the following fuel sources is commonly used in less developed countries because it is easily accessible?
a. Peat
b. Oil
C. Wood
d. Anthracite

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.

Which is a kingdom? protistachordataprokarya mammalia

which is an effect of short-term environmental changes? a) adaptation b) speciation c) extinction d) death (5 points)