Can one of you help me please
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Biology, 22.06.2019 10:30, DEVlN6070
The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere
Answers: 1
Biology, 22.06.2019 15:00, Gunn2368
Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
Answers: 1
Biology, 22.06.2019 20:00, longoriafaithe09
Are humans interfering with or a part of evolution happening today? find examples of evolution seen in recent history that could be caused by human activity.
Answers: 2
Biology, 22.06.2019 20:00, shedan1794
¿cómo demostraron los experimentos de griffith que un factor hereditario estaba involucrado en la transformación bacteriana?
Answers: 1
Mathematics, 11.01.2020 18:31
History, 11.01.2020 18:31
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Mathematics, 11.01.2020 18:31
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English, 11.01.2020 18:31