Choose the layers that are permeable and impermeable ? 1. layer of loose soil

2. layer of sand

3. layer of gravel

4. layer of hard clay

5. solid rock

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material

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