Q: - Magma rises from deep in the earth - The magma goes into volcanos - The volcanos pressure the magma upwards - The pressure causes the magma to push through the surface of the volcano - The lava cools - The lava forms new rock - New magma is pressured to the surface of the volcano What might be the last step of the process?
A: The volcano bursts through the rock the formed after the last eruption.

Q: - Waste products are deposited in the blood - Blood is carried to the kidneys through the renal arteries - The kidneys contain filters inside - The filters capture the waste products - The waste is combined with water to make urine - The urine leaves the kidney and is collected in the bladder What might be the last step of the process?
A: The cleaned blood is returned to the body.

Q: - The bird picks a tree - The bird collects twigs and other refuse - The bird makes a flat base with twigs - The bird makes sides with twigs and other things - The bird adds softer material to the inside What might be the last step of the process?
A: The nest is done.

Q: - Plants start growing on or near the rocks - The roots of the growing plants start to break up the rock - The plant acids dissolve the rock - The rock is broken down into smaller pieces What might be the last step of the process?
A:
Erosion begins.