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What is true about Earth's atmosphere? A) It has always had the same composition. B) It has and always will continue to change. C) It has not changed in the past will change in the future. D) It has changed
asked
Jun 16, 2018
Biology
middle-school
2
answers
5
votes
171k
views
How Can I Know When To Place A Zero In The Quotient?
asked
Nov 16, 2017
Mathematics
middle-school
1
answer
2
votes
58.1k
views
Which structure is found mainly in green plants and bacteria? A. Small vesicle B. Lysosome C. Cell wall D. Mitochondrion
asked
Jun 25, 2017
Biology
high-school
2
answers
3
votes
76.3k
views
Someone Help me please ?
asked
Feb 10, 2017
Mathematics
high-school
1
answer
4
votes
93.5k
views
What is the square root of 49 multiplied by the square root of 9
asked
Feb 9, 2017
Mathematics
high-school
2
answers
5
votes
121k
views
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