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Benchmark 2.1EES
Test Description: Preparing for Benchmark 2, 2015
Instructions: Answer all questions to get your test result.
1) What is the pH of water?
A
8
B
7
C
1
D
10
2) What is the difference between an acid and a base?
A
a base has a pH of less than 7; pH of acid is greater than 7
B
a base is the same thing as an acid
C
pH of acid is 17; pH of base is 21
D
pH of acid is less than 7' pH of base is greater than 7
3) How do plants decrease soil erosion?
A
root systems hold soils in place
B
plants actually increase soil erosion
C
plants reduce the force of gravity
D
plants multiply quickly and this regeneration decreases soil erosion because there are always so many plants available
4) Two critical limiting factors in any biome are
A
latitude and temperature
B
latitude and sunlight
C
temperature and latitude
D
temperature and precipitation
5) Which of the following would be considered an invasive plant in Union County?
A
yucca plants
B
soybeans
C
fescue grass
D
kudzu
6) Which of the following would be considered an invasive animal species in Union County?
A
gray squirrel
B
cardinal
C
white tail deer
D
zebra mussel
7) Why is there less biomass at the top of a food web?
A
There is more biomass at the top of the food web
B
There are too many animals and not enough plants in the food web
C
No energy transfer is 100%; with each transfer 90% or more is lost therefore less biomass is at the top of the food web
D
Energy transfers are are 100% complete; therefore, biomass concentrates lower on a food web
8) A primary reason that sinkholes form is because
A
salt water intrusion
B
volcanic eruptions
C
groundwater erodes the soil from the bottom up and there is nothing holding the land in place
D
limestone weathers quickly into calcium carbonate
9) In our power grid over 48% of electric power comes from _________.
A
coal
B
nuclear energy
C
hydroelectric
D
wind power
10) Solar power is gaining acceptance because
A
NC offers tax incentives
B
the Sun provides an inexhaustible energy source
C
Solar power is far less expensive than traditional electric power sources
D
the Sun'e energy can be stored
11) Which of the following contains the five primary land biomes
A
tundra, taiga, forests, grasslands, deserts
B
grasslands, savanas, steppes, taiga, deserts
C
coral reef, tundra, taiga, forests, grasslands
D
tundra, deserts, taiga, chapparal, mid-latitude moist climates
12) Which of the following is considered the largest class of water pollutants
A
sediments
B
thermal pollution
C
agricultural chemical runoff
D
fish kills
13) Why is wave energy from the ocean or tides considered a renewable energy resource?
A
both ocean waves and tidal waves are kinetic energy that occurs in predictable cycles
B
ocean and tidal wave energy are capable of being only a nonrenewable energy resource as they can only be harvested once
C
Ocean wave energy is renewable but tidal wave energy is not renewable
D
neither ocean waves nor tidal wave energy are able to be harvested with regularity
14) Burning of coal and crude oil emit ____________ ________.
A
carbonic acid
B
carbon dioxide
C
chlorofluorocarbons
D
carbon monoxide
15) Carbon dioxide + water yield _________ _______ a common form of acid rain.
A
sulfuric acid
B
nitric acid
C
carbonic acid
D
calcium carbonate
16) How might overfishing lead to the extinction of certain fish species?
A
El Nino causes fish to starve due to a lack of upwelling
B
commercial fishermen use nets to capture many fish that are not able to be used
C
Overfishing is a fallacy; it is a simple practice to replenish fish species
D
commercial fishermen use long line fishing to capture only selected fish species
17) Sustainable agricultural practices are important in the 21st century because
A
we must have enough food for over 7 billion people to eat but protect earth's resources at the same time
B
Slash and burn and clear cutting of forests have allowed developing countries more land area in which to grow crops
C
only Americans are concerned with sustainable agricultural practices which has led to severe political distress
D
Aquaponics and aquaculture are sustainable agricultural practices that can alone, feed the 7 billion people of the world
18) What are three greenhouse gases?
A
methane, water vapor, carbon dioxide
B
water vapor, nitrogen dioxide, mercury
C
methane, water vapor, sulfuric acid
D
methane, water vapor, stratospheric ozone
19) Which of the following can reduce the volume of water your family uses?
A
Take extended showers
B
Turn water off while brushing your teeth
C
Wash your car at home rather than going to a car wash that uses gray water such as Autobell
D
Run multiple loads of laundry daily
20) You can reduce your electric power bill by
A
keep lights on at all times
B
keeping thermostat set to 68 degrees F during winter months
C
never using power strips
D
open windows while running the air conditioning
*select an answer for all questions
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