The sandy beach system is important because:
they protect upland areas from erosion
homes to hundreds of organisms
provide recreation for humans
all of the above

Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

The body of water found at number 4 on the map above is the