instruction:
Given a scientific passage and an answer, generate a question for the given answer.
question:
Passage: Simple carbohydrates can be classified in terms of chain length. Answer: simple
answer:
Which carbohydrates can be classified in terms of chain length?

question:
Passage: Producers are living things that use energy to make food. Producers make food for themselves and other living things. There are two types of producers:. Answer: producers
answer:
Living things that use energy to make food, both for themselves and other living things, are what part of an ecosystem?

question:
Passage: Over the past several decades, computer technology has revolutionized human society. Watch this video interview about ways computers have changed people's lives. Then answer the questions below. Answer: computer technology
answer:
What has revolutionized human society over the past several decades?