Bellringers week of March 23
Item 1:
Use the picture to answer the question.
Which method is the most appropriate way to prevent the type of erosion shown in the picture?
A.constructing levees
B.installing a culvert
C.placing tree branches over the bank
D.introducing beavers into the area
Item 2:
Paul and Sandy are both trying to prevent erosion. Paul uses contour farming, and Sandy plants a
windbreak. Which types of erosion are Paul and Sandy trying to prevent?
A.Paul: topsoil
Sandy: topsoil
B.Paul: stream bank
Sandy: stream bank
C.Paul: coastal
Sandy: topsoil
Item 3:
Jill is researching possible pathways of pollution into an ecosystem. She writes down several pathways.
Which one of Jill’s proposed pathways is incorrect?
A.gas station leak
soil
B.factory emissions
C.cars burning gasoline
D.offshore oil drilling
groundwater
air
lake
air
soil
soil
ocean
Item 4:
The Lake Pontchartrain Basin receives pollution from many sources.
Which process is considered a point source of pollution?
A.the flow of fertilizers and animal waste from agriculture into the lake basin
B.the discharge of waste from sewage treatment plants into the lake basin
C.the spread of oil and particulates from roads into the lake basin
D.the runoff of mud and sand from nearby construction sites into the lake basin
Item 5 use maps to answer the question
These maps show changes in the Louisiana coastline over time.
Which measure could help to reverse the changes shown?
A.Build more dams on the Mississippi to stop erosion.
B.Remove forest areas to create new coastal marshes.
C.Import new plant species to hold the soil.
D.Release more sediment in the rivers to build land.
Item 6:
Scientists classify sources of pollution as either point sources or non-point sources.
Which picture shows pollution caused by a point source?
1. A.
2. B.
3. C.
4. D.
Item 7:
Use the table to answer the question.
Sources of Pollution
Row
Natural
Human-Caused
1
sediment from heavy
rain
runoff from
agriculture
2
volcanic eruptions
oil spills
3
forest fires
dumping
4
fossil fuel burning
microorganisms
Maya is preparing to give an oral presentation about natural and human-caused sources of pollution.
She organized her information in the table shown.
Which row of Maya’s table contains an error?
A.row 1
B.row 2
C.row 3
D.row 4
Item 8:
Use the pictures to answer the question.
The first picture shows an area of the Brazilian rain forest where many trees were cut in order to make
paper products. Then people replanted native trees in the area. The second picture shows the same
area twenty years later.
How does the change to the rain forest during these twenty years most likely impact Earth?
A.The change may help preserve biodiversity and absorb harmful carbon dioxide.
B.The change may decrease CFCs in the stratosphere and help prevent ozone layer depletion.
C.Denser tree cover may alter previous waterways and flood land downstream.
D.Denser tree cover may strip the soil of nutrients and contribute to topsoil runoff.
Item 9:
The source of pollution in a lake has been identified as a busy highway nearby.
Which statement describes the most likely mechanism of the pollution?
A.Exhaust from vehicles percolates through soil into the lake.
B.Broken pieces of asphalt erode into the lake and release toxic chemicals.
C.Vibrations from passing vehicles produce tiny fissures in the lake bed, releasing underground
chemicals.
D.Rain washes oil, bits of tire, and other materials from the highway into the lake.
Item 10:
Use the diagram to answer the question.
Much of the water that falls on the land as rain returns to the ocean.
Which two processes return liquid water on land to the ocean?
A.runoff and infiltration
B.runoff and condensation
C.sublimation and infiltration
D.condensation and precipitation
Item 11:
Water will evaporate fastest when the air is
1. A.cold and dry.
2. B.warm and humid.
3. C.cold and humid.
4. D.warm and dry.
Item 12: Use the list to answer the question.
Water Cycle Processes:
•evaporation
•sublimation
•infiltration
•transpiration
A farm uses water from a well to water its crops.
Choose two processes from the list and describe how these processes could be occurring at this farm.
Item 13: Use the steps in the water cycle to answer the question.
1. ?
2. Through condensation, water vapor becomes liquid and forms clouds.
3. Water then falls back to Earth as precipitation.
Which statement best completes the missing step in the water cycle?
1. A.Water permeates into oceans due to runoff.
2. B.Water permeates into oceans due to infiltration.
3. C.Water from oceans becomes water vapor through transpiration.
4. D.Water from oceans becomes water vapor through evaporation.
Item 14:
Use the diagram to answer the question.
Millions of tons of water evaporate from the oceans every day.
Which two processes in the water cycle return the most water to the oceans?
A.runoff and infiltration
B.runoff and precipitation
C.sublimation and condensation
D.condensation and precipitation
Item 15: Increasing concentrations of greenhouse gases, such as carbon dioxide (CO2) and methane
(CH4), are causing global warming.
As tropical oceans become warmer as a result, which change will most likely occur?
A.Increasing evaporation will lead to decreasing rainfall in some areas.
B.Increasing evaporation will lead to decreasing ocean levels.
C.Increasing precipitation will lead to increasing ocean levels.
D.Increasing evaporation will lead to increasing rainfall in some areas.
Building new cities, houses, businesses, and roads is called urban development.
How does increased urban development most commonly affect the surrounding area?
A.Runoff from the developed area increases, causing an increased frequency of flooding.
B.Nearby wetlands, which draw on the developed area’s underground water table, expand, causing
flooding.
C.More rainwater gets trapped on buildings and evaporates immediately, causing more rain to be
produced by the atmosphere.
D.Runoff from the buildings and pavement collects in local wells, contaminating the water supply.
Item 17: Which two processes in the water cycle increase the amount of water vapor in the
atmosphere?
A.evaporation and transpiration
B.evaporation and precipitation
C.condensation and sublimation
D.infiltration and transpiration
Item 18:
In parts of the western United States, significant amounts of snow can disappear from the ground
without melting.
Which term names this process in the water cycle?
A.infiltration
B.transpiration
C.evaporation
D.sublimation