Possibility of acid rain will increase
<span>hybridization can be used to produce plants giving a high yield by breeding an indigenous variety of the plant having disease and pest resistant qualities and also a greater adaptability to the particular environment with a high yielding exotic variety to get an offspring having the desired qualities of both and also promoting hybrid </span>
<span>settable solids, i hope this helps </span>
Answer:
I think B is baby teeth and A is permanent teeth
a) Baby teeth doesn't fall on schedule and permanent teeth come in behind them this results is two rows of teeths.