Biology, 06.11.2020 16:40 teescub812
Most of the energy used by people in the United States is produced by burning fossil fuels. Fossil fuels are energy resources that formed over millions of years from the remains of dead plants and animals. What is the ultimate source of the energy contained in fossil fuels?
Answers: 2
Biology, 22.06.2019 03:00
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 .
Answers: 1
Biology, 22.06.2019 08:00
What advantages does a pedigree have over a written passage?
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Biology, 22.06.2019 08:30
Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above
Answers: 1
Biology, 22.06.2019 18:30
On a spring day, a middle-latitude city (about 40? north latitude) has a surface (sea-level) temperature of 10 ? c. if vertical soundings reveal a nearly constant environmental lapse rate of 6.5 ? c per kilometer and a temperature at the tropopause of –55 ? c, what is the height of the tropopause?
Answers: 3
Most of the energy used by people in the United States is produced by burning fossil fuels. Fossil f...
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