Q: - A stream or river must occur - 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 What might be the last step of the process?
A: A dry ravine is left

Q: - Acid rain leaches aluminum from clay particles in soil - Aluminum flows into streams and lakes - Acid rain dissolves minerals and nutrients in soil - Washes them away so plants can't benefit from them - PH in soil and water gets affected which can kill plants and animals What might be the last step of the process?
A: Acid rain in fog at higher elevations can strip foliage off trees.

Q: - Bees go out during the day and gather food - Then while gathering of their food, they make wax, which is the building block of their bee hive - Bees make food called honey - They use a sticky, glue-like substance called propolis as a binding to hold their hives together What might be the last step of the process?
A: Bees produce all of the building blocks to build their hive in their own body

Q: - Magma cools inside the crust - Magma crystalizes - Lava cools on the surface - Lava crystalizes What might be the last step of the process?
A:
Minerals dissolved in water crystlize.