Which of the following is the best example of physical weathering?
a. sediment piling up at the mouth of a river b.
plant roots growing through concrete and splitting it c.
waves carrying sand away from a beach d.
small rocks being carried along a river bed

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

Nonpoint source pollution is difficult to control because it

What determines the average kinetic energy of the particles in a gas? a. the number of collisions b. the number of particles c. the size of the particles d. the temperature