Question

nitrogen causes plants to ______.
a. harden off more rapidly
b. resist disease and develop strong roots
c. grow rapidly and develop a dark green color
d. produce more flowers and seeds

Explanation:

Nitrogen is a key nutrient for plants, primarily involved in promoting vegetative growth. It is a major component of chlorophyll, which gives plants their green color, and it supports rapid cell division and growth. Option a (harden off more rapidly) is incorrect as hardening off is related to acclimatizing plants, not nitrogen's role. Option b (resist disease and develop strong roots) is more related to phosphorus and potassium. Option d (produce more flowers and seeds) is related to phosphorus. Option c correctly states that nitrogen helps plants grow rapidly and develop a dark green color due to increased chlorophyll production.

Answer:

c. grow rapidly and develop a dark green color