instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Amount of salt are aquatic biomes often classified.
answer:
How are aquatic biomes often classified?


question:
Water leaves ponds and lakes through evaporation and also as outflow.
answer:
Water leaves ponds and lakes through evaporation and also as what?


question:
We call an incorrect test result that should have been positive a(n) false negative.
answer:
What do we call an incorrect test result that should have been positive?