Trees acts like the lungs to the Earth
Globally, trees are recognized as the lungs of the Earth, because they exchange oxygen and carbon-dioxide in the atmosphere.
Trees are vital, they are the biggest plants on Earth, and they give us oxygen, store carbon, stabilize the soil and give life to the world wildlife. Sunlight is an essential element for photosynthesis.
The amount of carbon-dioxide they absorb, or produce varies hugely with year to year variations in the climate. Carbon-dioxide increases every year as a result of burning fossil fuels and deforestation. But the amount it goes up from one year to the next depends on whether trees are absorbing carbon-dioxide or releasing it, depending on whether the climate is warmer or dryer than usual, or wetter or cooler.
Most of the breathable oxygen in Earth’s atmosphere is supplied by plant life in a process called photosynthesis. We will run out of it, when we cut down trees and kill too much plant life in the oceans.
As long as we sustain Earth’s plant life in sufficient quantity, we won’t run out of oxygen. Trees keep the environment pure by helping us reducing air pollution. They absorb pollutants through their leaves, trapping and filtering contaminants in the air.
The trees and plants release oxygen during the day in the presence of Natural light, through the process of photosynthesis.
While at night the plants uptake oxygen and release carbon-dioxide, which is called respiration, there are few exceptional native trees like Neem and Peepul, which release oxygen at night too.
– Shantini Balu
