1.

The accidental touch of nettle leaves creates a burning sensation , which is due to inject of

Answer»

The ACCIDENTAL touch of nettle LEAVES creates a burning SENSATION because it injects formic acid, acetylcholine and histamine when its cell sap are under pressure.
Even the slightest touch breaks off their little tips, the broken tipthen forms a sharp edge, which pierces the STINGING HAIR into the skin and then sensation happens



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