What is the first layer in the atmosphere?

• Thermosphere

• Troposphere

• Mesosphere

• Exosphere

Which layer is above the Stratosphere?

• Ionosphere

• Thermosphere

• Troposphere

• Mesosphere

What is the outermost layer?

• Exosphere

• Thermosphere

• Ionosphere

• Mesosphere

Which layer do airplanes and jet fly in?

• Mesosphere

• Stratosphere

• Thermosphere

• Troposphere

Which layer is the farthest from Earth and can still be affected by Earth´s gravity.

• Exosphere

• Troposphere

• Mesosphere

• Ionosphere

Which layer consists of a large amount of ions and free electrons?

• Troposphere

• Mesosphere

• Ionosphere

• Exosphere

Which is true about the Mesosphere?

• Home to the northern lights

• Lowest layer of the atmosphere

• Second layer of the atmosphere

• Burns up most asteroids before they reach Earth

In this layer, it is not possible for research equipment to stay in orbit

• Stratosphere

• Mesosphere

• Ionosphere

• Troposphere

Which layer contains most of the mass of Earth's atmosphere

• Mesosphere

• Troposphere

• Ionosphere

• Thermosphere

Which layer lies at the top of the Mesosphere and the bottom of the Thermosphere

• Mesosphere

• Troposphere

• Ionosphere

• Thermosphere