Which of the following is a method that transports eroded material?

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

The number at the end of an isotope’s name is the number.

One student said that the investigation was not valid (a fair test). write a plan for the investigation that includes improvements to the method and apparatus