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Environmental Science Benchmark Review Flashcards | StudBud
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Environmental Science Benchmark Review
Environmental Science Benchmark Review
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1
Which organism in this food web is a producer?
snakes
mice
grass
crickets
2
Carrying Capacity is
The maximum number of individuals that can fit into an area
The maximum # of species that can co-exist in an area.
An environment's ability to accomodate a growing population.
The maximum population that an ecosystem can sustain.
3
Which of the following is an example of chemical weathering: select all that apply
Oxidation
Mining
Carbonation
Hydration
4
Which of the following energy sources reflect being a high cost sources but low impact to the environment?
wind
Solar
Oil
Biofuels
5
Which energy sources show low cost but high impact to the environment? Select all that apply:
Wind
Oil
Natural Gas
Coal
6
What is the primary effect of pollution as a limiting factor on an organism's population density?
It increases the birth rate of the organism.
It has no effect on the organism's reproductive habits.
It reduces the survival rate of the organism.
It decreases the birth rate of the organism.
7
How does burning fossil fuels affect the carbon cycle?
more carbonates remain in fossil fuels
more carbohydrates remain buried deep in the ground
more CO2 is absorbed by organisms
more CO2 is absorbed by the atmosphere
8
What provides the original energy for the food chain?
animals
orange juice
sun
moon
9
Future regional climate changes will be complex, what do current climate models predict?
average global temperatures will rise and level off
average global temperatures will start to comeback down
average global temperatures will continue to rise
average global temperatures cannot be predicted
10
What is the correct order smallest to largest for the ecological organization levels?
organism, population, community, ecosystem, biosphere
ecosystem, community, organism, population, biosphere
biosphere, community, organism, ecosystem, population
population, organism, ecosystem, community, biosphere
11
Which of these is a type of physical weathering?
Thermal Stress (Heat)
Frost weathering (Ice)
time
Abrasion (rubbing against something)
12
What is the carrying capacity?
1 million
1850
1.5 million
2 million
13
What is physical weathering?
The breakdown of rocks into smaller pieces.
Rocks do not change at all.
Rocks attach to each other and get bigger.
Minerals in rocks change to form new minerals.
14
When analyzing data about deforestation, which consequence is most directly related to biodiversity loss?
Loss of habitat for various species
Enhanced agricultural productivity
Increased soil erosion
Reduction in carbon dioxide levels
15
Waste from which of the following is an example of nonpoint source pollution?
Overflow from a sewage treatment plant
Runoff from agricultural fields
Outgassing from a municipal landfill
Dumping at a food-processing plant
16
What is a carrying capacity?
biotic or abiotic factor that resist the growth of a population
shows the energy flow in an ecosystem
maximum number of organism that supports an ecosystem
A single self contained entity that performs basic functions
17
Which of the following organisms are herbivores?
owls and dragonflies
white grubs and caterpillars
ladybugs and grasshoppers
finches and mosquitoes
18
What is chemical weathering?
sediments break down due to changes in minerals
a layer of soil
rocks break down due to chemical changes
when wind and rain break down rocks
19
Who is the secondary consumer?
Eagle
Python
Grasshopper
Frog
20
Which way does energy flow in the food chain?
from the mouse to the grass to the sun
from the owl to the mouse to the grass
from the sun to the grass to the mouse
from the mouse to the grass to the Sun
21
What is
one of the
most important greenhouse gases?
methane
oxygen
hydrogen
carbon dioxide
22
Which of the following practices has been most effective in conserving Louisiana's wetlands over the past 50 years?
Increasing industrial fishing
Allowing unrestricted development
Implementing controlled burns
Planting non-native species
23
What role do types of crops grown play in sustainable development in Louisiana?
They can enhance soil health and reduce erosion.
They have no impact on local wildlife.
They directly increase the state's population size.
They determine the state's economic growth rate.
24
During this process of the carbon cycle, plants absorb carbon dioxide from the atmosphere
Cellular Respiration
Photosynthesis
Condensation
Burning Fossil Fuels
25
what impact does ice sheet melting have
sea levels will stay the same
sea leveles rising
probably not
sea levels will decrease
26
What are the secondary consumers in this food web?
owls
owls, foxes
mouse, owls
foxes, owls, birds
27
Ice sheet and glaciers are melting because
the earth is getting colder
the earth is getting warmer
28
Rust is a type of chemical weathering known as
plant and animal activity
oxidation
rockslide
creep
29
Which of the following are things people can do on a personal level to reduce their carbon footprint?
Use public transportation where available
Turn off electronics when not using them
Recycle
Decrease the amount of meat eaten
30
The Biosphere is made up all the nonliving things on earth
False
True
31
In the food web, which animal is an omnivore?
owl
fox
rat
frog
32
Which change would lead to higher carbon dioxide levels in the atmosphere?
an increase in photosynthesis
a decrease in the destruction of forests
an increase in the burning of fossil fuels
a decrease in animal respiration
33
What is
one of the
most important greenhouse gases?
oxygen
methane
carbon dioxide
hydrogen
34
Global mean sea levels are
fluctuating
falling
rising
unchanging
35
The final stage of ecological succession in a land ecosystem is a ________.
Primary succession
Climax community
Secondary succession
Pioneer species
36
When plants make their own food they add what gas to the atmosphere?
Nitrogen
Hydrogen
Oxygen
Nitrogen
