Please helpp (no links or bots or ill report u) where do the majority of volcanoes occur?

A ) At the edges of continents along plate boundaries.
B ) In the center of oceans.
C ) in the center of the continents.
D ) In the middle of the ocean

What causes most sediment to wash or fall into a river

Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer

Which of the following is a chemical property of water at 4 c