Unit 4 (Atmosphere) Review

Front

What is a temperature inversion?

Back

A temperature inversion is a weather phenomenon where a layer of cool, dense air is trapped near the ground under a layer of warmer air, preventing the normal vertical mixing of air and trapping pollutants like smog.

Front

What pH level is considered acid precipitation?

Back

Acid precipitation typically has a pH level of 4.6 or lower, which is more acidic than normal precipitation, which has a pH of about 5.6.

Front

What is the primary source of energy that drives air movement in the troposphere?

Back

The primary source of energy that drives air movement in the troposphere is the sun.

Front

How does warm air compare to cool air in terms of water vapor capacity?

Back

Warm air can hold more water vapor than cooler air.

Front

In which layer of Earth's atmosphere does most weather occur?

Back

Most weather occurs in the troposphere.

Front

What is the pH of normal precipitation?

Back

The pH of normal precipitation is about 5.6.

Front

What is the role of the sun in weather patterns?

Back

The sun provides the energy that drives air movement and influences weather patterns and climate.

Front

Define convection current in the context of the atmosphere.

Back

A convection current is a circular movement of air that occurs when warm air rises and cool air sinks, creating a cycle that helps distribute heat in the atmosphere.

Front

What is acid deposition?

Back

Acid deposition refers to the falling of acids from the atmosphere to the Earth's surface, often in the form of rain, snow, or dust, which can harm ecosystems.

Front

What is the difference between the troposphere and the stratosphere?

Back

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