[Q]: - The spores fall to the ground - The spores germinate - The spores begin to grow mycelium - The mycelium begin to sprout a bud - A new mushroom is formed. What might be the first step of the process?
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[A]: Spores are dispersed into the air by a mature mushroom

[Q]: - The oxygen travels into the body - Breaks down into glucose - Carbon dioxide is produced by the glucose breakdown - The carbon dioxide is exhaled out of the body through the nose or mouth. What might be the first step of the process?
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[A]: A person takes in oxygen through their nose or mouth

[Q]: - The particles remove small pieces of the rock each time they touch the rocks - The particles continue to hit, brush against, or grow against the rocks - The rock eventually is broken apart by this contact - The pieces of the rock are now small rocks - The rock pieces are worn away into smaller and smaller pieces by the same forces - What might be the first step of the process?
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[A]: Particles in the environment interact with rocks

[Q]: - Through erosion, the stream cuts into the soil and bedrock - Through continuous erosion, a deep gash is cut through - After many years the river may dry up - A dry ravine is left - What might be the first step of the process?
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[A]:
A stream or river must occur