From the sources of plant nutrients availability in soil, which of the following statements are correct:

A. Air & water is the source of oxygen & the chief source of soil nitrogen is organic matter & when organic matter decomposes it gives ammonia.

B. All of the above

C. The plant absorbs carbon as carbondioxides directly from the atmosphere.

D. Water is the source of hydrogen

Be the first to comment if anything wrong with this mcq
Your comment successfully submitted!
It will automatically posted after review and approval by our staff member.