Answer:
Because of the way light bounces off of objects.
Answer:
I know one answer is an observer on earth sees a lunar eclipse
And physics and physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsvand physicsand physicsand physicsand physicsand physicsand physicsand physicsvvand physicsand physicsand physicsand physicsvvand physicsand physicsvand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physicsand physics
Chemical equations show how chemicals interact when a reaction occurs. They use symbols and formulas to show the chemical reaction so that chemical names do not need to be written out. They also help keep track of all elements and the number of atoms of each element on each side of the equation.
