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16. should be B) Chemical Properties of Water.

Because those are all examples of chemical changes of water.

17. should be B) The liquid will remain a liquid.

Because 52° C is the same as 125.6° F.

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

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.