| Alex: A leaf is attached to the stem by a stalk. |
| Justin: The stomata present on the leaves are responsible for exchange of gases in plants. |
| Maddie: One can see stomata at the undersurface of the leaf with naked eyes. |
| Who is telling the wrong fact? |
A) Justin
B) Maddie
C) Alex
D) All of them
E) None of them
Correct Answer: B
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