Unit 4: Earth Systems

Front

What are volcanic island arcs?

Back

Volcanic island arcs are chains of volcanic islands that form near subduction zones, where one tectonic plate is forced under another.

Front

What is the A horizon of soil also known as?

Back

The A horizon of soil is also known as topsoil, which is the uppermost layer of soil rich in organic material.

Front

What characterizes La Niña?

Back

La Niña is characterized by stronger trade winds in the Pacific Ocean, leading to cooler ocean temperatures.

Front

What are the major wind patterns on Earth?

Back

The major wind patterns on Earth include trade winds, westerlies, and polar easterlies.

Front

What happens in the southern hemisphere on December 21st?

Back

On December 21st, the southern hemisphere experiences the longest day and shortest night of the year.

Front

What is a subduction zone?

Back

A subduction zone is a region where one tectonic plate moves under another, often leading to volcanic activity.

Front

What is the significance of topsoil in agriculture?

Back

Topsoil is crucial for agriculture as it contains nutrients and organic matter necessary for plant growth.

Front

How do trade winds affect climate?

Back

Trade winds influence climate by driving ocean currents and affecting weather patterns, particularly in tropical regions.

Front

What is the difference between La Niña and El Niño?

Back

La Niña is characterized by cooler ocean temperatures and stronger trade winds, while El Niño features warmer ocean temperatures and weaker trade winds.

Front

What are equatorial currents?

Back

Equatorial currents are ocean currents that flow along the equator, driven by trade winds.