Read & RespondQuestion 5 of 8
Use the text below to answer the question.
The atmosphere has four layers. The lowest layer, the troposphere, contains 90% of our air. It is where most weather and human activity occurs.
Above the troposphere is the stratosphere, where the air is thin and cold. The only time we visit the stratosphere is in a jet plane. The stratosphere includes a thin layer of a gas called ozone. This ozone layer absorbs ultraviolet radiation from space and protects all living things in the troposphere below.
The mesosphere is above the stratosphere. It is the coldest layer because its air is so thin.
The few remaining air molecules in the thermosphere, the uppermost layer, absorb radiation from the sun, protecting the layers below. Specifically, nitrogen and oxygen atoms absorb this solar radiation and release electrically charged particles called ions. Within the thermosphere, these ions are found in a layer called the ionosphere. Sometimes radio waves bounce off the ionosphere, allowing us to hear radio stations from around the world. Near the Earth's two poles these ions emit beautiful shimmering lights called auroras.
In order from bottom to top, the layers of the atmosphere are
A
troposphere, stratosphere, mesosphere, thermosphere.
B
thermosphere, mesosphere, troposphere, stratosphere.
C
stratosphere, troposphere, mesosphere, thermosphere.
D
mesosphere, stratosphere, thermosphere, troposphere.
C
stratosphere, troposphere, mesosphere, thermosphere.