Final Review #4: Earth Formation, System, and Atmosphere

Front

What is the hydrosphere?

Back

The hydrosphere is the combined mass of water found on, under, and above the surface of a planet, including oceans, rivers, lakes, and water vapor in the atmosphere.

Front

In which layer of the atmosphere do auroras occur?

Back

Auroras occur in the thermosphere, which is also where the International Space Station orbits and temperatures increase with altitude.

Front

What is the atmosphere?

Back

The atmosphere is the layer of gases that surrounds the Earth, essential for life and weather.

Front

What is the role of ozone in the stratosphere?

Back

Ozone absorbs most of the ultraviolet radiation from the sun, acting as a protective layer for the Earth.

Front

Define matter.

Back

Matter is anything that has mass and takes up space, existing in solid, liquid, gas, or plasma states.

Front

What is the geosphere?

Back

The geosphere refers to the solid parts of the Earth, including rocks, minerals, and landforms.

Front

What is the biosphere?

Back

The biosphere is the global sum of all ecosystems, where life exists, including land, water, and the atmosphere.

Front

What is the difference between the troposphere and the stratosphere?

Back

The troposphere is the lowest layer of the atmosphere where weather occurs, while the stratosphere is above it and contains the ozone layer.

Front

What is the significance of the exosphere?

Back

The exosphere is the outermost layer of the atmosphere, where atmospheric particles are so sparse that they can travel hundreds of kilometers without colliding with one another.

Front

What is the function of the atmosphere?

Back

The atmosphere protects life on Earth by providing oxygen, regulating temperature, and shielding from harmful solar radiation.