Multiple choice

The excretory gases of plants are ___________.

  1. CO2 and N2

  2. CO2 and O2

  3. N2 and H2

  4. O2 and N2

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The process of removal of waste products of metabolism is very essential to life. Plants get rid of excretory gases through the pores (stomata) on the surface of the leaves.