1.
_______________ is the mixture of gases that surrounds the earth.
Correct Answer
C. Atmosphere
Explanation
The atmosphere is the correct answer because it refers to the mixture of gases that surrounds the earth. It consists of several layers, including the troposphere, mesosphere, and others. The atmosphere plays a crucial role in regulating temperature, protecting life from harmful radiation, and facilitating weather patterns on Earth.
2.
____________________ is the measure of the force with which air molecules push on a surface of the earth.
Correct Answer
A. Air pressure
Explanation
Air pressure is the measure of the force exerted by air molecules on a surface. It is the result of the weight of the air above the surface pushing down. The greater the density of air molecules, the higher the air pressure. Air pressure is an important factor in weather patterns and can affect various phenomena such as wind, temperature, and humidity.
3.
________________________ is the layer where gases turn and mix and is the layer closets to the earth
Correct Answer
C. Troposphere
Explanation
The given question asks for the layer where gases turn and mix and is closest to the Earth. The correct answer is the troposphere. The troposphere is the lowest layer of the Earth's atmosphere, extending from the Earth's surface up to an average height of about 7-20 kilometers. It is where weather occurs and where most of the Earth's air mass is found. In this layer, temperature decreases with increasing altitude, and it is characterized by the presence of clouds, weather patterns, and the majority of the Earth's atmospheric gases.
4.
________________ is the sphere where gases are layered and do not
mix very much, just above the troposphere
Correct Answer
B. Stratosphere
Explanation
The stratosphere is the correct answer because it is the layer of the Earth's atmosphere located just above the troposphere. In the stratosphere, gases are layered and do not mix very much. This is due to the presence of the ozone layer, which absorbs and scatters the majority of the sun's ultraviolet radiation. The stratosphere plays a crucial role in protecting life on Earth by preventing harmful UV rays from reaching the surface.
5.
_________________ is known as the middle layer in the atmosphere
Correct Answer
A. Mesosphere
Explanation
The mesosphere is known as the middle layer in the atmosphere. It is located above the stratosphere and below the thermosphere. The mesosphere is characterized by a decrease in temperature with increasing altitude, reaching its coldest temperatures near the top. It is also the layer where meteors burn up upon entering the Earth's atmosphere.
6.
__________________ is the layer of the atmosphere where temperatures are the highest
Correct Answer
C. Thermosphere
Explanation
The thermosphere is the layer of the atmosphere where temperatures are the highest. This is because it is directly exposed to the sun's radiation, causing the particles in this layer to gain energy and increase in temperature. The thermosphere is located above the mesosphere and extends into outer space. It is also the layer where the northern and southern lights, or auroras, occur due to the interaction of solar particles with the Earth's magnetic field.
7.
This layer contains electrically charged particles called ions and is part
of the thermosphere
Correct Answer
A. Ionosphere
Explanation
The ionosphere is the correct answer because it is the layer of the Earth's atmosphere that contains electrically charged particles called ions. This layer is located in the thermosphere, which is the uppermost layer of the atmosphere. The ionosphere plays a crucial role in radio wave propagation and communication as it reflects and refracts radio waves, allowing long-distance communication.
8.
Is
the highest layer of the atmosphere. Together with the ionosphere,
it makes up the thermosphere
Correct Answer
C. Exosphere
Explanation
The exosphere is the highest layer of the atmosphere. It extends from the thermosphere to outer space. It is a region where the atmosphere becomes very thin and gradually merges with the vacuum of space. The exosphere is composed of extremely low-density gas particles and is where satellites and other man-made objects orbit the Earth. It is distinct from the mesosphere and ionosphere, which are lower layers of the atmosphere. The term "tipisphere" is not a recognized term in atmospheric science.
9.
The boundary between the troposphere and the stratosphere is called the _________________
Correct Answer
B. Tropopause
Explanation
The boundary between the troposphere and the stratosphere is called the tropopause. The tropopause is a layer of the Earth's atmosphere that separates the lower troposphere, where weather occurs, from the upper stratosphere. It is characterized by a stable temperature inversion, meaning that the temperature increases with altitude instead of decreasing as it does in the troposphere. The tropopause plays a crucial role in regulating the exchange of heat, moisture, and pollutants between the two layers of the atmosphere.
10.
At the stratopause the temperature starts ________________ with altitude as you go up into the mesosphere.
Correct Answer
B. Decreasing
Explanation
As you ascend into the mesosphere from the stratopause, the temperature decreases with altitude. This is because the stratopause is the boundary between the stratosphere and the mesosphere, and in the stratosphere, the temperature increases with altitude due to the absorption of ultraviolet radiation by ozone. However, as you move into the mesosphere, the temperature starts to decrease again due to the decreasing concentration of ozone and the cooling effect of the lower atmospheric pressure.
11.
A normal thermometer can be used to measure temperature at the thermosphere.
Correct Answer
B. False
Explanation
The thermosphere is the layer of the Earth's atmosphere that lies above the mesosphere and extends from about 80 kilometers (50 miles) to the exosphere. It is the second-highest layer of the atmosphere and is characterized by extremely high temperatures. A normal thermometer is not suitable for measuring temperatures in the thermosphere because it can only measure temperatures up to a certain range. Specialized instruments like thermocouples are used to measure the high temperatures in the thermosphere.
12.
The 4 main layers of the atmosphere are:
Correct Answer
C. Troposphere, stratosphere, mesosphere, thermosphere
Explanation
The correct answer is troposphere, stratosphere, mesosphere, thermosphere. These four layers of the atmosphere are arranged in order of increasing altitude. The troposphere is the lowest layer and is where weather occurs. The stratosphere is above the troposphere and contains the ozone layer, which absorbs harmful ultraviolet radiation from the sun. The mesosphere is the middle layer and is characterized by decreasing temperature with increasing altitude. The thermosphere is the outermost layer and is where the auroras occur due to interactions with solar radiation.
13.
Temperature ______________ with altitude in the stratosphere.
Correct Answer
A. Increases
Explanation
In the stratosphere, the temperature increases with altitude. This is because the stratosphere is above the troposphere, which is the lowest layer of the Earth's atmosphere where temperature decreases with altitude. In the stratosphere, the presence of ozone absorbs and filters out the majority of the Sun's harmful ultraviolet radiation. This absorption of UV radiation causes a temperature increase in the stratosphere. Therefore, as you go higher in the stratosphere, the temperature gradually increases.
14.
The ionosphere is in what layer of the atmosphere?
Correct Answer
C. Thermosphere
Explanation
The thermosphere is the layer of the atmosphere where the ionosphere is located. This layer is characterized by high temperatures and the presence of ions and free electrons, which allow for the formation of the ionosphere. The ionosphere plays a crucial role in radio communications and the reflection of radio waves, as well as the formation of auroras.