Question

Excretory product of plants

Answer 1

carbondioxide and oxygen

Answer 2

Some of the excretory products of some plants are nitrogenous and poisonous.
some of them are
1) Quinine - Cinchona officinallis
2) Nicotine - Nicotina Tobacum
3) Morphine,cocaine - Papaver Somniferum
4) Reserpine  - Rauwolfia serpentina
5) Caffeine - coffea Arabica
6) Nimbin - Azardirachta Indica
7) Scopolamine - Datura Stramonium
8) Pyrethroids - Chrysanthemum