The Ring of Fire is the result of this plate boundary where deep earthquakes and volcanic island chains give evidence to the presence of plate movement.

Seafloor spreading is the result of this type of plate boundary found along the Mid-Atlantic Ridge.

Not all volcanoes are found on plate boundaries, some are found in weaker areas of the crust where magma is able to push through. These regions are called...

The sediment in soil comes from what geological process?

Soil contains both sediments and organic matter. Where does organic matter come from?

Soil forms horizons each with its own unique characteristics. Which Soil Horizon contains lots of clay particles, iron, and aluminum?

Soil forms horizons each with its own unique characteristics. Which Soil Horizon has all the nutrients leaving with only sand and silt remaining?

Soil forms horizons each with its own unique characteristics. Which Soil Horizon contains large amounts of organic matter like leaf debris?

Soil forms horizons each with its own unique characteristics. Which Soil Horizon contains the parent material?

Soil forms horizons each with its own unique characteristics. Which Soil Horizon contains the bedrock that provides some of the basic chemistry of the soil?

List the mineral sediments in order from smallest to largest in terms of particle size.

Porosity and Permeability are unique soil characteristics based on the differing concentrations of each soil particle type. Which particle has the greatest permeability?

Which characteristic of soil demonstrates the ability of soil to hold large amounts of water?

What type of mineral sediment has the highest water-holding capacity?

Using the Soil Triangle, what type of soil is made of...

60% Sand

10% Clay

30% Silt

In the nitrogen cycle, the process of taking N2 out of the atmosphere and converting it to NH3 is called?

In the nitrogen cycle, the process of converting NH3 to NH4+ is called?

In the nitrogen cycle, the process of converting NH4+ into NO2 (nitrites) or NO3 (nitrates) is called

In the nitrogen cycle, the process of converting NO3 (nitrates) back into free nitrogen N2 is called...

What is the process of living organisms taking up vital nutrients and incorporating them into their proteins and nucleic acids called?

Soil fertility refers to the nutrients and pH of the soil. Both nitrogen and phosphorus are needed in plants because they help them...

Sources of phosphorous include

Due to the slow cycling of the phosphorous cycle, scarce traces of phosphorus are in high demand. This is known as a(n)

The nitrogen cycle is a quicker cycle than the phosphorus cycle. Choose the answer below that best explains why.

The water cycle is an important biogeochemical cycle. The first step occurs when warm liquid water changes into a gaseous phase.

The water cycle is an important biogeochemical cycle. The second step occurs when water vapor cools and turns back into a liquid in the form of a cloud.

The water cycle is an important biogeochemical cycle. The third step occurs when the cloud is oversaturated and releases water back down to the earth's surface.

The water cycle is an important biogeochemical cycle. Not all water changes phase at the surface of a river or lake, some plants give off water vapor through the stomata of their leaves.

Of all the water found on earth about what percent of it is fresh water?

Weather and turbulence are associated with this atmospheric layer.

The ozone layer can be found in this atmospheric layer.

This atmospheric layer is the location of the ionization of particles creating the Aurora.

This is the thinnest layer of the atmosphere and thus has the lowest pressure.

The troposphere is warmest at the surface because of the land and water absorbing the sun's radiation. However, polar regions do not warm as much. Snow and ice have very reflective surfaces known as

At what latitude do we find most of the desert biomes?

What is the main factor driving the convection current of a Hadley cell?

Warm air rises because...

Cool air sinks because...

Civilizations are found along which region of the watershed?

Dams have been negatively affecting the environment for decades. One example is occurring with the Colorado River. What is an example of a negative environmental impact of dam creation?

When viewing the water cycle, not all water gets absorbed into the ground. On surfaces such as concrete and asphalt we will see high levels of

The roots of trees and plants provide soils with air pores for water movement. Thus increasing which portion of the water cycle?

If the Northern Hemisphere is receiving the most direct sun rays at the Tropic of Cancer, what season will it be experiencing?

If the Northern Hemisphere is receiving the most direct sun rays at the Tropic of Capricorn, what season will it be experiencing?

If the Northern Hemisphere is receiving the most direct sun rays at the equator, what season(s) will it be experiencing?

On the Big Island of Hawaii, the Northern region is on which side of the rainshadow?

On the Big Island of Hawaii, the Southwestern region is on which side of the rainshadow?

Looking at the map, why is the Pacific NW of the US one of the rainiest regions?

The Earth's seasons are influenced by the distance of the Earth to the sun.