Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Water seeping into the ground is known as infiltration.

Answer: Water seeping into the ground is known as?


Question: A mushroom is the fruiting body that occurs after two hyphae mate and form a mycelium with sporangia.

Answer: What is the fruiting body that occurs after two hyphae mate and form a mycelium with sporangia?


Question: Unlike energy, matter doesn’t need to be constantly added to ecosystems because it is recycled through ecosystems.

Answer:
Unlike energy, what doesn’t need to be constantly added to ecosystems because it is recycled through ecosystems?