Pls help number 4.4, 4.5 and 4.6 pls
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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 02:40
Which represents the cross between parent plants if one is heterozygous for yellow-colored pods and the other is homozygous for green-colored pods? yy ´ ´ ´ ´ yy
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Biology, 22.06.2019 12:10
Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give
Answers: 1
Business, 26.07.2019 09:00
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Mathematics, 26.07.2019 09:00
Mathematics, 26.07.2019 09:00
Mathematics, 26.07.2019 09:00