Summarize why is it useful to understand
weather patterns associated with fronts.

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

How did planetesmals form planets? a. they broke apart into smaller chunks.b. they collided and stuck together.c. they cooled and pulled ice together.d. they began to rotate.

What shape would a molecule with two bound groups and two lone pairs have?