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ARC-Challenge / Mercury_408922 / A chemical called DDT was once used to kill insect pests. When investigations…

Problem

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question

A chemical called DDT was once used to kill insect pests. When investigations showed this chemical was harmful to some types of birds, the use of DDT stopped. How was the scientific process best able to help scientists understand that DDT was harmful to birds?

choices

  • Different predictions about the chemical were made.
  • Tests performed on the chemical had different results.
  • Repeated tests on the chemical reached the same conclusion.
  • Different procedures were used to test the properties of the chemical.

Discussion

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Source and history

upstream_id / Original problem ID
Mercury_408922
task_id
0306a698-8a32-5127-8c59-009dd8e9042a
task_key
ARC~2dChallenge--test--Mercury~5f408922
task_revision_id
1
config / split
ARC-Challenge / test

Official source

initial import