Table of Contents
Which part of atmosphere contains ozone?
the stratosphere
The ozone layer is the common term for the high concentration of ozone that is found in the stratosphere around 15–30km above the earth’s surface. It covers the entire planet and protects life on earth by absorbing harmful ultraviolet-B (UV-B) radiation from the sun.
What layer of atmosphere contains?
the troposphere
The majority of the mass of the entire atmosphere is contained in the troposphere—between approximately 75 and 80 percent. Most of the water vapor in the atmosphere, along with dust and ash particles, are found in the troposphere—explaining why most of Earth’s clouds are located in this layer.
Where are the two atmospheric layers that contain ozone?
stratosphere
About 10% of atmospheric ozone is in the troposphere, the region closest to Earth (from the surface to about 10–16 kilometers (6–10 miles)). The remaining ozone (about 90%) resides in the stratosphere between the top of the troposphere and about 50 kilometers (31 miles) altitude.
Where does the ozone layer in Earth’s atmosphere come from?
High in the atmosphere, some oxygen (O2) molecules absorbed energy from the Sun’s ultraviolet (UV) rays and split to form single oxygen atoms. These atoms combined with molecular oxygen (O2) to form ozone (O3) molecules, which are very effective at absorbing UV rays.
How is ozone produced in atmosphere?
Stratospheric ozone is formed naturally through the interaction of solar ultraviolet (UV) radiation with molecular oxygen (O2). The “ozone layer,” approximately 6 through 30 miles above the Earth’s surface, reduces the amount of harmful UV radiation reaching the Earth’s surface.
What are the four layers of the atmosphere?
Atmosphere is usually divided into four layers called the troposphere, stratosphere, mesosphere, and the thermosphere (Fig. 6.2). 1. Troposphere : The troposphere or lower atmosphere is in contact with the earth’s surface, and is about 8 km high at the poles and 16 km at the equator.
How far is the ozone from Earth?
The ozone layer is mainly found in the lower portion of the stratosphere from approximately 20 to 30 kilometres (12 to 19 mi) above earth, though the thickness varies seasonally and geographically.
What are facts about ozone?
Here are some interesting facts about our ozone layer. Fact 1: The ozone layer is 20 kilometers thick and is made of ozone gases. It resides in the upper atmosphere, known as the stratosphere. Fact 2: The ozone layer’s role is to filter out harmful ultraviolet radiation, which is harmful to humans and animals on Earth.
What does the ozone protect us from?
Up in the stratosphere, ozone (O3) acts as a natural sunscreen to protect us against ultraviolet (UV) radiation. That’s the stuff that gives us sunburns. Because of the ozone layer, most of the harmful radiation never reaches Earth. But, as more and more of it does, we’re at greater risk for skin and eye problems.