Plants release oxygen through the process of photosynthesis. The plants help to provide oxygen for animal respiration. They also maintain the balance of oxygen and carbon dioxide in the atmosphere. That is why forests are called green lungs.if helpful please upvote and be my follower!!!!!!!!!!!!!

Introduction:
Forests are often referred to as "green lungs" due to their vital role in maintaining the health of our planet. This metaphorical term highlights the fact that forests play a crucial role in producing oxygen and absorbing carbon dioxide, similar to how our lungs work in our bodies. In this response, we will explore the reasons behind this analogy in detail.

1. Oxygen Production:
Forests are known for their exceptional ability to produce oxygen through the process of photosynthesis. During photosynthesis, trees and plants utilize sunlight, carbon dioxide, and water to produce oxygen and glucose. Oxygen is released into the atmosphere, providing us with the vital gas necessary for human and animal respiration. Forests, with their vast number of trees, contribute significantly to the oxygen levels in the air, earning them the title of "green lungs."

2. Carbon Dioxide Absorption:
Another critical function of forests is their capacity to absorb carbon dioxide, a greenhouse gas responsible for climate change. Trees capture carbon dioxide from the atmosphere and store it in their trunks, branches, leaves, and roots. This absorption process helps regulate the concentration of carbon dioxide in the atmosphere, preventing it from accumulating excessively. Forests act as a natural carbon sink, playing a crucial role in mitigating the impacts of climate change.

3. Biodiversity Conservation:
Forests are home to an incredible variety of plant and animal species, making them hotspots of biodiversity. The rich diversity of flora and fauna found in forests is essential for maintaining the balance of ecosystems. Each species plays a specific role in the ecosystem, contributing to various ecological processes such as pollination, seed dispersal, and nutrient cycling. By preserving forests and their biodiversity, we ensure the continuity of these vital ecosystem services.

4. Air Quality Improvement:
Apart from oxygen production and carbon dioxide absorption, forests also contribute to improving air quality. They act as filters by trapping pollutants such as dust, smoke, and harmful gases. The leaves of trees capture particulate matter, reducing its concentration in the air we breathe. Forests also help mitigate the impact of air pollution by absorbing certain pollutants and releasing clean oxygen back into the atmosphere.

Conclusion:
Forests are aptly called "green lungs" due to their remarkable ability to produce oxygen, absorb carbon dioxide, conserve biodiversity, and improve air quality. These invaluable functions highlight the crucial role forests play in maintaining the health and balance of our planet's ecosystems. By recognizing and appreciating the significance of forests as green lungs, we can strive to protect and conserve these precious natural resources for future generations.