Explain how the speed of a wave of sound or light can be changed?

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?

What is a metal replacement reaction

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.