Michelle wants to quickly dissolve powdered drink mix into a pitcher of water. which is not a way she could increase the rate of dissolution?

a. heating the mixture

b. stirring the mixture

c. breaking up the solute into smaller pieces

d. adding more powdered drink mix

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Explain why biological control methods are generally environmentally superior to chemical pest control methods.