<span>By proper application of fertilizers. Soil tests provides the proper application. hope this helps</span>
DNA can be transferred naturally between species by breeding.
Calcium chloride is a salt, which is used in household and in industries. The calcium chloride is an ionic compound which can be split in ionic form such as one cation (Ca2+) and two anions (Cl-). Therefore, the cation in the CaCl compounds is Ca2+ ions.
I would think the second one would be correct. But I am not 100% sure.
