Layers of atmosphere

The weather layer of the atmosphere is ________.

• mesosphere

• stratosphere

• thermosphere

• troposphere

The most abundant gas in the atmosphere is ________.

• carbon dioxide

• argon

• nitrogen

• oxygen

In which layer of the atmosphere do cloud formation and precipitation occur?

• mesosphere

• stratosphere

• thermosphere

• troposphere

In which layer of the atmosphere do airplanes fly to avoid turbulence?

• mesosphere

• stratosphere

• thermosphere

• troposphere

________ is a region of highly ionized, or electrically charged, gases.

• mesosphere

• thermosphere

• troposphere

• stratosphere

It is the lowest layer of the atmosphere.

• stratosphere

• mesosphere

• thermosphere

• troposphere

In which atmospheric layer is the ozone formed?

• mesosphere

• stratosphere

• thermosphere

• troposphere

It is essential to maintain the ozone layer in the atmosphere because it ________.

• prevent heat loss from the Earth

• mixes the gases in the atmosphere

• reflect sun's rays back to the atmosphere

• absorb most of the ultraviolet radiation that enters the atmosphere

The layer of the atmosphere from top to down are ________.

• stratosphere, mesosphere, thermosphere, ionosphere

• thermosphere, mesosphere, stratosphere, troposphere

• thermosphere, stratosphere, mesosphere, troposphere

• troposphere, mesosphere, thermosphere, stratosphere,

Why is the troposhere called the weather sphere?

• The troposhere has the densest air.

• There is a high concentration of ozone in this layer.

• Clouds, precipitation, and storms forms in the troposphere.

• Temperature decreases as altitude increases in the troposhere.