Question

(vii) Draw T.S. of stem showing xylem and phloem.
(viii) From where do we get commercial fibres?
(ix) What is an annual ring in wood?
(x) Write two points to prove essentiality of mineral elements. (xi) What are the factors affecting transpiration?
(xii) Name the three deficiency diseases and elements related to them.
(xiii)Define the terms; transpiration, ascent of sap.​

Answer 1

Answer:

(vii) Draw T.S. of stem showing xylem and phloem.

(viii) From where do we get commercial fibres?

(ix) What is an annual ring in wood?

(x) Write two points to prove essentiality of mineral elements. (xi) What are the factors affecting transpiration?

(xii) Name the three deficiency diseases and elements related to them.