![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
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
Answers: 2
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 06:30
Explain how scientists use geologic time to determine the age of landforms.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 09:00
Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous
Answers: 3
You know the right answer?
What is the composition of the dialysis fluid...
Questions
![question](/tpl/images/cats/es.png)
Spanish, 28.09.2020 01:01
![question](/tpl/images/cats/mat.png)
Mathematics, 28.09.2020 01:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.09.2020 01:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.09.2020 01:01
![question](/tpl/images/cats/istoriya.png)
History, 28.09.2020 01:01
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 28.09.2020 01:01
![question](/tpl/images/cats/mat.png)
Mathematics, 28.09.2020 01:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 28.09.2020 01:01
![question](/tpl/images/cats/himiya.png)
Chemistry, 28.09.2020 01:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.09.2020 01:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 28.09.2020 01:01
![question](/tpl/images/cats/mat.png)
Mathematics, 28.09.2020 01:01