Millions of years ago, the sierra nevada region began to be uplifted along a crack in earth's crust. the region on the other side of the crack moved downwards. which physical feature most likely resulted from such a motion?

fault block mountain with rough edges and steep cliffs
fault block mountain with waves, twists, and turns
folded mountain with rough edges and steep cliffs
a folded mountain that appeared wavy

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)