[Q]: What is the final step of the following process: - A bird picks a spot high spot, often in a tree - The bird collects bits of sticks and grass - The sticks and grasses are placed between support branches - Leaves, mud and spider webs are added to the sticks - The mud, leaves and webs glue the sticks together
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[A]: The solid nest supports the eggs

[Q]: What is the final step of the following process: - Magma rises through cracks in the Earth's crust - The pressure causes plates to move - Magma explodes to the surface - The lava from the eruption cools to form new crust
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[A]: After several eruptions, the rock builds up and a volcano forms

[Q]: What is the final step of the following process: - The kidneys receive blood from the renal artery - They process it with millions of tiny nephrons - Remove all the waste - The kidneys return the blood back to the body through the renal artery
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[A]: Send the urine with the waste to the bladder through the ureters.

[Q]: What is the final step of the following process: - Food is put into mouth - Food is chewed and mixed with saliva (spit) - Food travels down the esophagus (throat) - Food travels into the stomach - Acid in the stomach breaks the food down further - Food travels into the small intestine - Nutrients from food are absorbed into the blood stream - Food travels into the large intestine - Most of the remaining material is now waste
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[A]:
The waste is eventually removed from the body.