Factors Impacting Earth Systems Question Preview (ID: 37454)


Weathering, Watersheds,pollution.[print questions]

About how much of the Earth's water is freshwater?
a) 97%
b) 67%
c) 3%
d) 1.5%

How can runoff negatively affect water sources?
a) by carrying more water to a pond or river
b) by carring pollution into a pond or river
c) by blocking a river
d) by speeding up the water cycle

If we use too much water in an area-what is the best example of something that could happen?
a) pollution would become more common
b) Aquifers would turn into springs
c) watersheds would disappear
d) water levels in aquifers would decrease and wells could become dry

What is a way that humans can cause erosion to speed up?
a) creating pollution
b) planting trees
c) clearing land of trees and grasses
d) People do not affect erosion at all-it is an Earth process.

Can dirt be considered a pollutant?
a) No-dirt gets mixed with water all the time
b) Yes-too much dirt can harm an aquatic ecosystem
c)
d)

If you cannot easily trace or identify where a type of pollution came from it is called-
a) point source pollution
b) non point source pollution
c) Priority pollution
d) solution pollution

Can a particular piece of land be part of more than one watershed?
a) Yes
b) No
c) It depends on how much rain it gets
d) Land has nothing to do with watersheds.

The measure of the amount of spaces between pieces of soil, rock. gravel. etc.
a) porosity
b) permeability
c) infiltration
d) pollution

What makes water flow from higher to lower regions?
a) wind
b) permeability
c) erosion
d) gravity

a measure of the ability of an Earth substance to let water pass through it=
a) permeability
b) porosity
c) percolation
d) pollution

The area of land that drains and supplies all of the water for a particular water source is a -
a) delta
b) watershed
c) aquifer
d) well

Which is not one of the main components of the water cycle?
a) precipitation
b) condensation
c) perspiration
d) evaporation

Which environment would be most affected by wind erosion?
a) tropical rain forest
b) grassland
c) desert
d) deciduous forest

When a river flows into a larger body of water, sediments get dropped as the river slows down. This forms a landform call a-
a) aluvial fan
b) plateau
c) watershed
d) delta

Which is NOT one of the four architects of nature?
a) wind
b) rocks
c) water
d) gravity

Iron oxide forming on a rock breaks off pieces
a) mechanical weathering
b) chemical weathering
c)
d)

Which is an example of erosion?
a) waves crash to the shore and carry sand back out with them
b) a sand dune is created
c) a root grows up beneath a sidewalk-breaking it
d) a river drops sediment as it slows down

Which of the following is an example of a cause of chemical weathering?
a) root pry
b) frost wedging
c) lichens
d) wind

The largest watershed in the United States is-
a) The Colorado River Watershed
b) The Rio Grande River Watershed
c) The Ohio River Watershed
d) The Mississippi River Watershed

water that fills the cracks and spaces in underground soil and rock layers is called-
a) precipitation
b) infiltration
c) groundwater
d) a lake

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