You and a friend are looking at the stars and your friend says, "stars must be shrinking because gravity is constantly pulling their particles together." explain what is wrong with this reasoning.

Which represents a negative impact of technology

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

A(n) is a molecule influences the way that a molecule reacts.