Whether it’s agriculture, industry, vehicles, electricity or natural disasters, these are the major air pollution sources that contribute to climate change.
Over 4 billion years ago, Earth’s atmosphere was mostly methane & nitrogen. The Great Oxygenation Event marks a time when free oxygen filled the atmosphere.
What makes Earth unique is its ozone layer. Ozone is a colorless gas made up of three oxygen atoms which protects us from harmful UV radiation from the sun.
During magnetic storms, trapped plasma flashes lights that are observable around the globe. This disturbance in the magnetosphere is the Aurora Borealis.
The magnetic field gives us a layer out in space called the magnetosphere. Without it, Earth would be exposed to solar and cosmic radiation.
Because the Earth is tilted on its axis, it’s why we have seasons. When Earth receives more sunlight on one side, it’s summer. And vice versa for winter.
From largest to smallest, Earth’s atmosphere composition contains nitrogen, oxygen, argon, CO2 and trace gases. Water vapor is excluded from this total.
There are 4 primary layers of the atmosphere on Earth: troposphere, stratosphere, mesosphere and thermosphere. The ionosphere and exosphere are above those.
As the Earth spins, the sun always shines on one side which gives it sunlight. When you’re facing the sun, it’s daytime. But when you’re not, it’s night.