The Earth’s atmosphere is composed of a number of elements, but Oxygen is the second most abundant element covering 20% of the atmosphere while Nitrogen mainly composes it for about 70%.
Oxygen is very vital to the lives of humans and animals as we majorly depend on Oxygen for our body systems to work and function. When the levels of Oxygen in the atmosphere drops, more sunlight will reach the Earth’s surface thus, bringing higher temperature that can wipe out certain species that cannot stand too much heat.
That is why people should be more aware in protecting the environment by planting more trees to keep or increase the levels of Oxygen in the atmosphere for everyone’s welfare.
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