Solar Radiation & Seasons
Soils
Atmosphere
El Nino
Earths Systems
100

This is the primary reason Earth experiences different seasons throughout the year.

What is the tilt of Earth’s axis?


100

Put the three soil particles in order from smallest to largest.


What is clay → silt → sand?

100

This gas makes up the largest percentage of Earth’s atmosphere.


What is nitrogen?

100

El Niño occurs in the _____.


What is the Equatorial Pacific, Southern Pacific, or Tropical Eastern Pacific Ocean?

100

One side of a mountain range receives abundant precipitation while the opposite side remains relatively dry. What phenomenon produces this dry region?


What is the rain shadow effect?

200

At this latitude, solar radiation is generally strongest year round because sunlight strikes Earth at a more direct angle.


What is the equator?

200

A soil profile contains a surface layer made largely of fallen leaves and other partially decomposed organic material. Which horizon is being described?


What is the O horizon?

200

Most weather experienced at Earth’s surface occurs in this atmospheric layer.

What is the troposphere?

200

During El Niño, this process along the coast of Peru is reduced, limiting the movement of nutrient-rich deep water toward the surface.

(Two answers required- the cause and the effect)

What is thermocline and upwelling?

200

Moist air approaches a mountain range from the ocean. The side of the mountains that first receives this air is called what?

What is the windward side?

300

A location at 30°S receives more solar radiation in December than June because December is this season in the Southern Hemisphere.


What is summer?

300

 soil sample contains partially weathered rock that still resembles the material from which the soil formed. Which horizon would you expect to find it in?


What is the C horizon?

300

The beneficial ozone layer is primarily located in this atmospheric layer.

What is the stratosphere?

300

La Niña generally increases nutrient availability in the eastern Pacific, resulting in increased concentrations of these organisms at the base of the marine food web.


What is phytoplankton?

400

If a location experiences its greatest solar energy in June, it is most likely located in this hemisphere.

What is the Northern Hemisphere?


400

A farmer’s soil sample contains 25% clay, 25% silt, and 50% sand. Using the soil texture triangle, how would this soil be classified?


What is sandy clay loam?

400

This atmospheric phenomenon can be reduced during El Niño because of cooler Atlantic water temperatures and stronger winds.


What is hurricane formation in the Central Atlantic?

500

Two soils receive the same amount of water. Water moves through one much more readily than through the other. Which soil property best explains this difference?


What is permeability?