How long does gunpowder residue remain on a shooter's hands?
a few hours
about 24 hours...
Biology, 03.10.2019 12:00 jalenshayewilliams
How long does gunpowder residue remain on a shooter's hands?
a few hours
about 24 hours
a few days
about a week
Answers: 2
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What is the name for a substance formed in a chemical reaction
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Will mark brainliest. (20 points) many have pigments structures known as eyespots that detect direction of light. a. b. archaebacteria c. protists d. none of the above
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What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid
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Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above
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