MP Board · Class 7 · Science · Forests: Our LifelineWhy are forests referred to as 'green lungs'?
Step-by-Step Solution
Forests are called green lungs because plants release oxygen through photosynthesis, purifying the air and maintaining oxygen-carbon dioxide balance.
Detailed Options Breakdown
Option : Because they are green in color
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Forests: Our Lifeline.
Option 1: Because they release oxygen and purify air (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Because they cause rainfall
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Forests: Our Lifeline.
Option 3: Because they produce wood
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Forests: Our Lifeline.
💡 Study Guide: This question tests core syllabus concepts from Forests: Our Lifeline. For formulas, key summaries, and mock exam reference guides, read the full Forests: Our Lifeline Revision Notes.