“Layers of the Atmosphere”

A weather balloon is launched from the Earth's surface and reaches an altitude of 50 km. Based on the data, which atmospheric layer is the balloon in at this altitude?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Why do airplanes typically fly in the lower stratosphere rather than in the troposphere?

• The stratosphere has more oxygen for combustion.

• The air is less turbulent, providing a smoother flight.

• The air pressure is higher, making flights more stable.

• The stratosphere has a cooler temperature, preventing overheating.

Based on the given temperature trends, which statement best describes the relationship between altitude and temperature in the first three layers of the atmosphere?

• The temperature decreases with altitude in all three layers.

• The temperature increases with altitude in all three layers.

• The temperature remains constant in all three layers.

• The temperature decreases in the troposphere, increases in the stratosphere, and decreases again in the mesosphere.

A satellite orbits the Earth at an altitude of 500 km. Based on atmospheric layer data, in which layer does the satellite move?

• Troposphere

• Mesosphere

• Thermosphere

• Exosphere

The thermosphere experiences extremely high temperatures, sometimes exceeding 350°C. However, astronauts in this layer do not feel this heat intensely. What is the most likely explanation?

• The air in the thermosphere is very thin, so there are not enough molecules to transfer heat efficiently.

• The heat is absorbed by the spacecraft’s outer layers, protecting the astronauts inside.

• The temperature readings in the thermosphere are incorrect due to weak atmospheric pressure.

• The thermosphere does not actually experience high temperatures; this is just a theoretical assumption.