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Geography, 23.06.2019 11:10
Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks
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Geography, 23.06.2019 23:00
One disadvantage that darwin faces today is w. enemy attacks x. natural disasters y. lack of land bridge z. high population density
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Geography, 25.06.2019 05:00
The movement of which layer of earth drives the motion of the plates on earth's crust
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Geography, 25.06.2019 06:30
What is the most effective approach the government can take to keep the air clean? create and enforce regulations that limit fossil fuel burning by industries use funds to understand why smoke and mold are causes of outdoor air pollutants educate people about the threats to outdoor clean air from visible forms of air pollution modify regulations under the clean air act by including expensive options to reduce air pollution
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One micrometer is a millionth of a meter. a certain spider we is 4 micrometers thick. a fier in a sh...
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