How many kilometers is the troposphere away from earth?

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel