Biology, 05.04.2021 17:40 AnimePo2020
Ahi-dasa-uxy h0t girls j0in on g00gle meet
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Biology, 21.06.2019 18:00, shelbyo1123
The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community
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Biology, 22.06.2019 04:30, Lindsay882
Why are scientists concerned about the depletion of the ozone levels in the stratosphere?
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Biology, 22.06.2019 13:30, hello123485
Explain the significance of meiosis in sexual reproduction
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Ahi-dasa-uxy h0t girls j0in on g00gle meet...
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