Why is having a well-insulated house important

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

Which units ate used to measure both velocity and speed? check all that apply