Unit 4 Review

Which of the following characterizes one of Earth's atomshperic layer?

• Layer C is the stratosphere, where the ozone layer is found.

• Layer D is the thermosphere, where auroras are found.

Which of the following best describes why understanding a watershed and its boundaries is important in designing housing developments along a river?

• The water contained in a watershed is more likely to become polluted if the soil has high permeability, so it is important to locate all point sources to reduce contamination.

• Surface water and stormwater runoff will drain downstream within the watershed boundaries, so it is important to understand the flow of water through the watershed.

Hoover Dam is the largest dam in the United States built on the Colorado River supply hydroelectric power and flood control. Which of the following best describes a downstream environmental effect of Hoover Dam on the Colorado River watershed?

• The drainage basin of the Colorado River includes 246,000 square miles and serves as a source of drinking water for over 40 million people.

• The damming of the Colorado River led to change in stream flow, preventing river water and sediments from reaching the delta area.

Tags

CCSS.RI.3.3

CCSS.RI.4.3

CCSS.RI.5.3

CCSS.RI.6.3

CCSS.RI.7.3

Which of the following should be included in a watershed map to best determine the non-point source of a pollutant, such as fertilizer, found in a river?

• The total volume of surface water of the river and the land use downstream of the river

• The land use upstream of the river and water quality indicators in streams that run downstream into the river

Which latitude shown on the diagram above experiences 24 hours of daylight on December 21?

• B (Tropic of Cancer)

• E (Antarctic Circle)

Which of the following best describes the independent variable in this research design?

• The flow time, which is related to the porosity of each sample, is the variable that is measured, so it is the independent variable

• The sample of material chosen as the potential container material is the variable being tested, so it is the independent variable

Which of the following best describes why the engineer chose to calculate the permeability of the soil sample in the experimental design in order to evaluate a natural containment system to protect groundwater?

• Soils that have low permeability would best help protect groundwater because the large pore spaces would provide space for pollutants to attach and would have rapid percolation of water.

• Soils that have low permeability would best help protect groundwater because the soil traps pollutants so that chemical and biological breakdown can occur.

Which of the following is the most likely effect of a strong El Nino event on the weather patterns in the United States?

• Wetter weather and cooler temperatures in the Pacific Northwest and warmer temperatures with more snow in the northeastern states.

• Wetter weather and cooler than average temperatures in the southeastern states and water temperatures in the Pacific Northwest

If the diagram illustrates Earth's relative position on December 21 of a given year, which of the following statements would be correct?

• The tropic of capricorn has a shorter day and higher solar radiation intensity because there is a direct relationship between length of day and radiation intensity

• The tropic of cancer has a shorter day and lower solar radiation intensity because there is a direct relationship between day length and radiation intensity

Which of the following areas receives the most intense solar radiation at the time of year shown in the diagram and why?

• The equator, because it is the hottest region and therefore receives the most intense solar radiation

• The tropic of Capricorn, because this latitude is nearly horizontal to incoming solar radiation