Philippe did an experiment in science class in which he was trying to determine what is happening to carbon dioxide in various situations. He set up his lab using aquatic snails and Elodea aquatic plants. He put four tubes in a light environment and four tubes in a dark environment. He used a solution called bromothymol blue to indicate the presence of carbon dioxide in the water.
When bromothymol blue is placed in water it will be green. As carbon dioxide is added to water, the solution will turn yellow. When you remove carbon dioxide from the solution, it will turn blue.

What color would each test tube become after 24 hours?

i believe the answer is a or 1

yes it is   dangerous

explanation:

because that foot is discusting and could get you sick

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.