What kind of material is found in the c horizon of a soil profile? mineral and organic matter clay particles hardpan partially weathered parent material

Define dew point. i am writing this part to be able to ask the question

Nonpoint source pollution is difficult to control because it

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!