Respuesta :
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.
nitrogen
aluminium and Mercury are metals and limestone ,I don't think helps plants in any way.
nitrogen is very important for plant growth
aluminium and Mercury are metals and limestone ,I don't think helps plants in any way.
nitrogen is very important for plant growth