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Describe all the characteristics of Earth that make it ideal for living creatures.
asked
Oct 28, 2018
Physics
high-school
2
answers
3
votes
132k
views
List four plants, three animals and one disease that were introduced to the lands where they had never existed before 1492.
asked
Nov 20, 2017
History
high-school
1
answer
5
votes
120k
views
C12H22O11 + 11H2SO4 12C + 11H2SO4 + 11H2O How do you know the concentrated sulfuric acid is a catalyst?
asked
Apr 11, 2017
Physics
high-school
2
answers
4
votes
194k
views
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