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A climatologist removes an ice core sample from the Antarctic. She finds volcanic ash at the bottom of the core, followed by increasing amounts of dissolved oxygen as she goes to the top of the core sample.
answered
Feb 17, 2018
Social Studies
high-school
1
vote
84.4k
views
What is one advantage and one disadvantage of online learning?
answered
Jan 21, 2018
Business
high-school
4
votes
28.7k
views
the perimeter of equilateral triangular Garden is 18 ft. The side lengths are 3x feet. what is the value of x?
answered
Jan 11, 2018
Mathematics
middle-school
7
votes
124k
views
While walking for exercise, Mia is able to walk only 3\4 as far on Saturday she walks 1 1/2 miles. How many miles did she walk Friday
answered
Oct 11, 2017
Mathematics
high-school
7
votes
167k
views
Mark went to an electronic store, purchased 2 CDs and 6 DVDs, and spent $156. Antonio went to the same store, bought 1 CD and 9 DVDs, and spent $210. How much does each CD sell for at the store? $12 $15
answered
Sep 23, 2017
Mathematics
high-school
5
votes
200k
views
A black sand beach would be considered part of which sphere? A.geosphere B.cryosphere C.hydrosphere D.biosphere
answered
Jul 31, 2017
Geography
high-school
0
votes
40.5k
views
Which is a characteristic of nuclear fusion but NOT nuclear fission? a.releases large amounts of energy b.is the energy source of stars c.is used in electric power plants d.requires little energy to occur
answered
Jun 11, 2017
Chemistry
high-school
3
votes
64.0k
views
What is the process that results in new species?
answered
Sep 26, 2016
Biology
high-school
1
vote
12.0k
views
A baseball player reaches first base 30% of the times he is at bat. Out of 50 times at bat about how many times will the player reach first base?
answered
Jun 24, 2015
Mathematics
middle-school
6
votes
89.8k
views
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