B definitely because d is just dumb, c is not possible, a is not even true so b
Answer:
D
Explanation:
proteins make up every thing
Its A and B i think because when cold air and warm air.mixed it.form precipitation like tornado
Enzymes are biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism.
