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Some fuel cells are powered by hydrogen. Scientists are looking into the decomposition of water (H2O) to make hydrogen fuel with the help of the Sun’s energy. What challenge do scientists face with this
answered
Feb 8, 2019
Physics
middle-school
3
votes
93.4k
views
The idea that humans are rightly the masters of nature has been called
answered
Jan 17, 2019
Social Studies
college
3
votes
224k
views
How many genotypes are possible for the offspring?
answered
Aug 12, 2018
Biology
middle-school
1
vote
182k
views
Which best describes the polynomial -4x^2-3 First degree binomial First degree polynomial with 8 terms Second degree monomial Second degree binomial
answered
Aug 8, 2018
Mathematics
middle-school
3
votes
169k
views
ROM stores data as you search the internet to help increase the speed of your computer. A. True B. False
answered
Jul 19, 2018
Computers and Technology
high-school
5
votes
110k
views
What did President Nixon believe would be a benefit of improved relations with the Chinese?
answered
Apr 30, 2018
Social Studies
high-school
4
votes
204k
views
What are the names “Judaism” and “Jew” based on?
answered
Apr 21, 2018
History
high-school
3
votes
27.6k
views
New England merchants become leading members of the society
answered
Oct 31, 2017
Social Studies
middle-school
2
votes
111k
views
According to the Guinness Book of World Records, the longest home run ever measured was hit by Roy "Dizzy" Carlyle in a minor-league game. The ball traveled 188m (618 ft.) before landing on the ground
answered
Apr 4, 2017
Physics
high-school
6
votes
116k
views
Free-market economies use ______ to distribute goods, services, and resources A.Price B. Command C.Government
answered
May 29, 2016
History
high-school
2
votes
198k
views
What happens to a carbon atom during photosynthesis?
answered
Aug 19, 2015
Biology
high-school
4
votes
36.2k
views
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