The Atmosphere Flashcards
What are the main layers of the Earth’s atmosphere?
Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere.
True or False: The Troposphere is the highest layer of the atmosphere.
False.
Fill in the blank: The __________ is the layer of the atmosphere where weather occurs.
Troposphere.
What is the primary gas composition of the Earth’s atmosphere?
Nitrogen (78%) and Oxygen (21%).
Which layer of the atmosphere contains the ozone layer?
Stratosphere.
True or False: The Thermosphere is characterized by a decrease in temperature with altitude.
False.
What is the boundary between the Earth’s atmosphere and outer space called?
Kármán line.
Multiple Choice: Which gas is most abundant in the atmosphere? A) Oxygen B) Nitrogen C) Carbon Dioxide
B) Nitrogen.
What phenomenon causes the blue color of the sky?
Rayleigh scattering.
Fill in the blank: The __________ layer of the atmosphere is where most meteors burn up upon entry.
Mesosphere.
What is the role of the ozone layer in the atmosphere?
It protects life on Earth by absorbing harmful ultraviolet (UV) radiation from the sun.
True or False: The Exosphere is where weather patterns are formed.
False.
What is the temperature trend in the Stratosphere?
Temperature increases with altitude.
Multiple Choice: Which layer of the atmosphere is closest to Earth? A) Stratosphere B) Troposphere C) Mesosphere
B) Troposphere.
What is the main source of energy that drives atmospheric processes?
The Sun.
Fill in the blank: The __________ is a region of the atmosphere that is characterized by very low temperatures and low pressure.
Mesosphere.
True or False: The Thermosphere can reach temperatures of up to 2,500 degrees Celsius.
True.
What is the primary function of the atmosphere?
To provide oxygen for respiration, protect from harmful solar radiation, and regulate temperature.
Multiple Choice: Which layer of the atmosphere is known for containing the ionosphere? A) Stratosphere B) Thermosphere C) Troposphere
B) Thermosphere.
What gas is produced by volcanic eruptions and contributes to atmospheric changes?
Sulfur dioxide.
True or False: The atmosphere is static and does not change over time.
False.
What is a significant consequence of ozone depletion?
Increased UV radiation reaching the Earth’s surface.
Fill in the blank: The __________ is the layer where the auroras occur.
Thermosphere.
What is atmospheric pressure?
The force exerted by the weight of air above a given point.
