The model below shows a reaction that has taken place with the aid of an enzyme. Which part of the model represents the enzyme? A. W

B. X

C. Y

D. Z

Hey, did u ever get the answer for this??

I have the test to do also and i dont know this one...

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.