Biology, 28.01.2020 05:31 redstar215
Which limitation of fuel cells is the most likely reason why people are concerned about using fuel cells in cars?
a. hydrogen gas is volatile.
b. water contains a lot of hydrogen atoms.
c. fuel cell cars cannot drive at extreme speeds.
d. fuel cell cars are very quiet.
Answers: 2
Biology, 22.06.2019 06:00
What element is able to combine with itself and hydrogen to form large molecules ?
Answers: 1
Biology, 22.06.2019 18:30
Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical? a. some people consider embryos to possess rights equal to those of fully developed human beings. b. extracting stem cells from embryos is a very energy-intensive process, which consumes resources that could be used elsewhere. c. embryos are difficult to obtain, so the monetary cost of using them for research outweighs their benefit. d. the process of extracting stem cells from embryos generates biohazardous waste that cannot be safely disposed of.
Answers: 2
Biology, 22.06.2019 23:20
After a signal is transmitted from the eyes through the optic nerve, which part of the brain processes the visual information? a. the limbic lobe b. the occipital lobe c. the frontal lobe d. the temporal lobe
Answers: 1
Which limitation of fuel cells is the most likely reason why people are concerned about using fuel c...
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