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Earth Science PSSA Practice 2
Test Description: PSSA Science practice and review.
Instructions: Answer all questions to get your test result.
1) Students have observed a flock of birds near the school. Which question is a testable question for their investigation?
A
How many birds come to a feeder with sunflower seeds?
B
Do these birds migrate south for the winter?
C
Why are the birds near the school?
D
Do the birds like to eat only at one feeder?
2) A small lake has an Alge bloom, which change is MOST LIKELY to have caused the algae growth?
A
an increased number of peolpe fishing in the lake.
B
an increase in the amount of fertilizer used near the lake.
C
an increased number of boats using the lake.
D
an increase in the amount of fresh water flowing into the lake.
3) Which statement CORRECTLY describes an energy source AND its effect on the environment?
A
Nuclear energy, which uses a non-renewable fuel resource, generates dangerous waste.
B
fossile fuel, which comes from a continuously renewable resource, generates greenhouse gases.
C
hydropower, which comes from a nonrenewable resource, generates dangerous waste.
D
solar power, which comes from a continuously renewable resource, generates greenhouse gases.
4) Which process changes liquid water into a gaseous state (water vapor) ?
A
precipitation
B
condensation
C
sublimation
D
evaporation
5) Which process changes solid water into a gaseous state (water vapor)?
A
evaporation
B
snow
C
precipitation
D
sublimation
6) A nonliving factor in an environment is called a _____________ factor.
A
biotic
B
abiotic
C
commodity
D
allele
7) A community of living organisms of a single major ecological region.
A
biome
B
allele
C
climate change
D
niche
8) The complete elimination of a species from the earth
A
extinction
B
fact
C
reproduction
D
community
9) Water that infiltrates the soil and is located in underground reservoirs called aquifers.
A
tributary
B
watershed
C
water table
D
ocean
10) The tendancy for a system to remain in a state of equilibrium by resisting change is .....
A
homeostasis
B
community
C
evolution
D
condensation
*select an answer for all questions
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