Earth Science PSSA Practice 2 Question Preview (ID: 24892)


PSSA Science Practice And Review. TEACHERS: click here for quick copy question ID numbers.

A nonliving factor in an environment is called a _____________ factor.
a) biotic
b) commodity
c) abiotic
d) allele

A community of living organisms of a single major ecological region.
a) niche
b) biome
c) allele
d) climate change

The complete elimination of a species from the earth
a) community
b) fact
c) extinction
d) reproduction

Water that infiltrates the soil and is located in underground reservoirs called aquifers.
a) water table
b) tributary
c) watershed
d) ocean

Which process changes liquid water into a gaseous state (water vapor) ?
a) sublimation
b) condensation
c) evaporation
d) precipitation

Which process changes solid water into a gaseous state (water vapor)?
a) evaporation
b) sublimation
c) precipitation
d) snow

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) solar power, which comes from a continuously renewable resource, generates greenhouse gases.
d) hydropower, which comes from a nonrenewable resource, generates dangerous waste.

A small lake has an Alge bloom, which change is MOST LIKELY to have caused the algae growth?
a) an increase in the amount of fertilizer used near the lake.
b) an increase in the amount of fresh water flowing into the lake.
c) an increased number of peolpe fishing in the lake.
d) an increased number of boats using the lake.

Students have observed a flock of birds near the school. Which question is a testable question for their investigation?
a) Why are the birds near the school?
b) How many birds come to a feeder with sunflower seeds?
c) Do these birds migrate south for the winter?
d) Do the birds like to eat only at one feeder?

The tendancy for a system to remain in a state of equilibrium by resisting change is .....
a) evolution
b) homeostasis
c) condensation
d) community

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