I would select A. Nitrogen due to the fact Nitrogen is found in most soil samples and Aluminum and mercury are metals. Also, limestone i don't find beneficial to plants whatsoever.
A dual agent is a person who represents both the <u>seller </u>and the <u>buyer</u>. In a dual agency, a buyer may hire an agent to represent him/her while the seller also hires an agent to represent his/her interest.
Most of the time, both the seller and buyer have the <u>same agent</u> to negotiate a contract or transaction. In a dual agency, the agent is normally expected to represent both parties in a fair manner.
