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- 1. Multiple Choice
Which question would you need to know to determine if the core of Mars is similar to the core of Earth?
Choose the BEST option.
Is the core of Mars metallic?
What is the rate of rotation of the core of Mars?
Is the core of Mars thicker than other layers of Mars?
Does the core of Mars have a strong gravitational field?
- 2. Multiple Choice
What best describes the mantle of Earth?
a thin layer that is located on the surface
a solid layer made of iron and nickel
the largest layer between the crust and outer core
the smallest layer that is made up of molten rock
- 3. Multiple Choice
Earth is made of different layers that have varying characteristics. Which is the thickest layer?
the mantle
the inner core
the outer core
the crust
- 4. Multiple Choice
Which is a process that most likely formed the Appalachian Mountains found in the eastern part of North America?
earthquake
folded rock
plate tectonics
volcanic activity
- 5. Multiple Choice
A student identifies a soil sample as "very gritty." What characteristic of the soil did the student describe?
texture
hardness
organic content
retention
- 6. Multiple Choice
Which statement about the formation of rocks is true?
Heat and pressure can change igneous rock to sedimentary rock.
Weathering and erosion can change sedimentary rock into sediment.
Heat and pressure cause metamorphic rock to weather and erode.
Weathering and erosion prevent magma from changing into igneous rock.
- 7. Multiple Choice
What is the driving force behind the movement of tectonic plates?
tidal forces
convection currents in Earths mantle
Gravitational pull of the Sun and the Moon.
the different rotation of Earths inner and outer cores.
- 8. Multiple Choice
A class is conducting an experiment on how different types of soil can affect the growth of a plant. Which are the main factors the class should consider when designing the experiment?
the soil texture and the amount of water is can hold
the types and amounts of sugars found in the soil
the color of the container for the soil and the plant
the shape and color of the seeds planted in the soil
- 9. Multiple Choice
The Appalachian Mountains, which extend from Canada to Alabama, were much taller in the past than they are today. Which of the following two processes are most responsible for the decrease in the height of the Appalachian Mountains?
sedimentation and flooding
weathering and erosion
volcanic eruptions and landslides
tectonic collisions and earthquakes
- 10. Multiple Choice
The topsoil covering an area of land was washed away by rain. Which statement best describes the land?
steep, without vegetation
steep, with vegetation
Flat, without vegetation
flat, with vegetation
- 11. Multiple Choice
Which human activity will most likely increase the amount of soil erosion in an area?
growing crops
mowing grass
planting flowers
cleat-cutting wooded areas
- 12. Multiple Choice
Soil conservation officers inspect fields on four farms. Each farmer uses a different method to protect his fields. Which farm has methods that would BEST prevent soil erosion?
Farm A, where crops are planted in plowed, straight rows.
Farm B, where each field is left unplanted in plowed rows each year
Farm C, where different crops are planted in plowed rows each year.
Farm D,where crops are planted within the remains of last year's crops
- 13. Multiple Choice
Which BEST explains the movement of tectonic plates?
They move several miles each year because of convention within Earth.
They move several centimeters each year because of convection within Earth.
They move several feet each year because of convection within Earth.
They move several kilometers each year because of convection with in the Earth.
- 14. Multiple Choice
Which event MOST likely takes place as the result of crustal movement along transform boundaries?
earthquakes
volcanic activity
mountain building
trenches
- 15. Multiple Choice
A state agency evaluates the safety of heavy metal concentrations in soil. The table lists the limits that are considered acceptable. Levels that are higher than the ones in the table could harm human health. So, land must be tested for heavy metals before houses are built. If any levels are too high, then a developer must clean up the soil before building.
Limits for Levels of Heavy Metals in SoilConcentration (mg/kg)Copper (Cu)270Cadmium (Cd)0.86Chromium (Cr)22Nickel (Ni)140Lead (Pb)400Zinc (Zn)2200
A developer wants to build a neighborhood on a site where a car manufacturing plant used to be located. He takes a sample of soil from the site and has it tested. The results are shown in the table below.
Soil Testing Results, Heavy MetalsConcentration (mg/kg)Copper (Cu)200Cadmium (Cd)0.58Chromium (Cr)19Nickel (Ni)90Lead (Pb)500Zinc (Zn)1500
Based on the results, the developer decided NOT to clean up the site before building. Do the data support this decision?
Yes, because all levels are below the acceptable limits.
Yes, because only one level is above the acceptable limit.
No, because one level is above the acceptable limit.
No, because two levels are above the acceptable limits.
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