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Biology, 21.06.2019 18:00
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 07:30
Which locations on the map are low-pressure areas? a b c d e
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Biology, 22.06.2019 16:00
You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars
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Mathematics, 06.04.2021 18:10
Mathematics, 06.04.2021 18:10
Physics, 06.04.2021 18:10
Biology, 06.04.2021 18:10
Chemistry, 06.04.2021 18:10
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Social Studies, 06.04.2021 18:10
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Geography, 06.04.2021 18:10