A gene is a hereditary trait in your body and also apart of your DNA not visible to the naked eye making up how you look
The pH scale measures the concentration of how acidic or basic something is. The lower the number below 7, is acidic. Above 7 is basic. 7 is waters purest form.
B) a smokestack for an electric power plant
Answer:
The activation energy must be reached. The catalyst makes lower energy pathways available.
Explanation:
