Question

What is the main function of veins in a leaf?

Photosynthesis

Transpiration

Transport of substances

Answer 1

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Answer 2

Veins act like tubes and help in transportation or transport of substances.

Answer 3

Got it ?

Answer 4

yup thanks

Answer 5

There are two main plant veins: the xylem and the phloem. The xylem transports water through the plant, and the phloem transports sugars. Besides transportation, both structures also provide support for the plant. Veins in monocots are parallel on the margins of the leaf while veins in dicots radiate from the midrib of the leaf.
so the answer is
Transportation of substances