REVIEW: EARTH LAYERS & ATMOSPHERE

Front

What are the layers of Earth's atmosphere in order from lowest to highest?

Back

1. Troposphere 2. Stratosphere 3. Mesosphere 4. Thermosphere 5. Exosphere

Front

What is the primary component of Earth's core?

Back

Iron

Front

How does temperature change as you go deeper into the Earth?

Back

Temperature increases.

Front

How does pressure change as you go deeper into the Earth?

Back

Pressure increases.

Front

Which layer of the atmosphere is closest to the Earth's surface?

Back

Troposphere

Front

What is the outermost layer of the Earth?

Back

Crust

Front

What is the main gas found in the troposphere?

Back

Nitrogen (approximately 78%) and Oxygen (approximately 21%)

Front

What is the function of the ozone layer?

Back

The ozone layer absorbs most of the Sun's harmful ultraviolet radiation.

Front

What is the difference between the lithosphere and the asthenosphere?

Back

The lithosphere is the rigid outer layer of the Earth, while the asthenosphere is a semi-fluid layer beneath it.

Front

What is the significance of the mantle in Earth's structure?

Back

The mantle is the thick layer between the crust and the core, involved in tectonic activity.