QUESTION TEXT: Seemingly inconsequential changes in sea temperature due…
QUESTION TYPE: Role in Argument
CONCLUSION: Seemingly inconsequential changes in sea temperature due to global warming eventually result in declines in fish and seabird populations.
REASONING: A rise of two degrees prevents vertical mixing of water. This starves phytoplankton. That starves zooplankton. The loss of zooplankton starves the rest of the food chain.
ANALYSIS: This is a good argument. The statement about zooplankton is evidence that zooplankton will die. It ultimately supports the idea that the rest of the food chain will die if temperatures increase.
- It isn’t a hypothesis. It is a fact.
- More than this. Phytoplankton are a crucial link in the food chain. If phytoplankton die then zooplankton die. Then everything else dies.
- CORRECT. Zooplankton are one of the links between warm waters and dead birds.
- The argument didn’t actually say we should stop global warming. It just described what would happen if we didn’t stop it.
- The argument only claimed that global warming would hurt fish and seabirds. It didn’t talk about land ecosystems.
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