Match the term with the definition: 1. weathering 2. erosion 3. deposition -when rock fragments in suspension are released and to build new geological formations -the process by which a rock or mineral is broken down -the movement of weathered rock particles by air, water, or ice

The answer for #3 is c but i don't know why

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.