Which of the following is NOT a way by which an insect pests attack the plants?
Show answer & explanation
Correct answer: D
Explanation
Correct Answer: Option 4 (They aid in nitrogen fixation)
Explanation:
Insect pests harm plants, not help them. They bite the roots and stems of plants, suck cellular sap, and bore into fruits. Nitrogen fixation is carried out by beneficial microorganisms (such as Rhizobium bacteria), not harmful insects.
Additional Facts
Types of Damage: Insects attack in three main ways: chewing, sucking, and boring.
Nitrogen Fixation: This process improves soil fertility and promotes plant growth.
Control: Pesticides and biological control methods are used to protect crops from pests.
Possible Questions for the Upcoming Exam
Which bacteria fix nitrogen in the roots of leguminous plants?
(Answer: Rhizobium)
What is the percentage of nitrogen in the atmosphere?
(Answer: 78%)
What does the 'N' in 'NPK' fertilizer for plants stand for?
(Answer: Nitrogen)