Answer:
Cation-exchange capacity is a measure of how many cations can be retained on soil particle surfaces. Negative charges on the surfaces of soil particles bind positively-charged atoms or molecules, but allow these to exchange with other positively charged particles in the surrounding soil water
Each element is made of only one kind of atom
Explanation:
option A is the correct one.
Answer: South poles will attract the North pole of the magnet and the north pole will attract the South pole.
Explanation: