Plz help Select all the correct answers.
Madison is a responsible homeowner. She often thinks about the environment when working on home projects. What should Madison do to help slow pollution as she works?
1.Measure carefully and more than once when cutting lumber to reduce waste.
2.Purchase tools that have multiple uses rather than buying many specialized tools.
3.Pour unused paint down the drain instead of taking it to the recycling center.
4.Plant vegetation and trees on hilly areas to hold nutrient-rich soil in place.
5.When given a choice, pick the most expensive tool or material for the job.

In a laboratory experiment, a fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol. the solution was heated by burning natural gas in a bunsen burner to distill the ethanol that formed in the flask. during the distillation, the ethanol evaporated and then condensed in the receiving flask. the flame of the burner was kept too close to the bottom of the flask and some of the glucose decomposed into a black carbon deposit on the inside of the flask. during this experiment the following changes occurred. which of these changes involved a physical change and not a chemical change? check all that apply. 1-condensation of ethanol 2-evaporation of ethanol 3- formation of carbon dioxide gas from glucose burning of natural gas 4-formation of ethanol from glucose by yeast 5-formation of a carbon deposit inside the flask

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles