a. it is fairly safe for use in homes.
Biology, 06.09.2019 20:30 tylijahking
Which of these is a drawback of using natural gas?
a. it is fairly safe for use in homes.
b. it burns more cleanly than crude oil products.
c. scientists have developed new ways of extracting it.
d. during its extraction, groundwater can be contaminated.
Answers: 1
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How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?
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Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .
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Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos
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Azoologist is studying four very closely related feline species. she wishes to compare their gestation periods. an observational study is conducted where the zoologist observes the gestation period of 50 randomly selected felines in each species. a one-way anova test is run to test the hypothesis that the average gestation period is the same for each of the four species. a level of significance of 0.05 is used, and a p-value of 0.01 is calculated. based on this result, the conclusion that can be drawn is that:
Answers: 1
Which of these is a drawback of using natural gas?
a. it is fairly safe for use in homes.
a. it is fairly safe for use in homes.
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