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Answers by Hyunsoo

Answers by Hyunsoo
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Airborne mercury has received special attention because it is a widespread and persistent neurotoxin (a substance that damages the brain and nervous system). minute doses can cause nerve damage and other
answered May 20, 2018
4 votes
134k views
What does the presence of dinosaur footprints in an area where no dinosaurs bones were found suggest the area was once underwater dinosaurs were never in that area the climate was too hot for dinosaurs
answered Mar 7, 2018
4 votes
176k views
Absolute time would be most similar to : A. a fact B. a inference C. the law of superposition D. the geologic time scale
answered Feb 9, 2018
6 votes
55.3k views
Which of the following is a nonrenewable resource? a. River b. Gold c. Carbon d. Tree
answered Oct 27, 2017
3 votes
177k views
What is the largest city in south America located in Brazil
answered Sep 21, 2017
3 votes
152k views
Which describes the Northwest Indians? a. made their homes on mounds where they buried their dead b. farmed squash, beans, and other plants and lived in wigwams c. lived in cliffside caves or cliff dwellings
answered May 19, 2017
3 votes
140k views
Marge has 14 2/5 feet of chain. She wants to make pieces of 3/8 foot long. How many can she make?
answered Aug 18, 2016
2 votes
127k views
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