vibes
lowkey
slaps
no cap
say less
100
Species diversity can be quantified by using which of the following sets of data about an ecosystem?
a. The number of species and the area
b. The number of species and the number of individuals of each species
c. The number of individuals of each species and the net primary productivity
d.The number of individuals of each species and the area
b. The number of species and the number of individuals of each species
100
A scientist wishes to test the effects of different amounts of water and fertilizer on yields of corn. In a series of experimental fields, she varies the supply of water and the amount of fertilizer applied to a given strain of corn and measures the yield of the crop that results. In this experiment, which is/are the dependent variable(s)?
a. Corn yield and the variety of corn
b. Water supply
c. Corn yield
d. Amount of fertilizer and variety of corn strain
c. Corn yield
100
Which of the following would decrease one’s ecological footprint?
a. Eating more meat
b. Eating more processed and packaged food
c. Walking to school rather than driving
d. Purchasing a larger home
c. Walking to school rather than driving
100
Fishing licenses are a legislative attempt to avoid which of the following?
a. A tragedy of the commons
b. The enforcement of the Endangered Species Act
c. A cost-benefit analysis
d. A negative feedback loop
a. A tragedy of the commons
100
This layer of soil is also known as the topsoil; it contains much humus.
a. A horizon
b. B horizon
c. C horizon
d. H horizon
a. A horizon
200
It is determined that a soil sample is composed of 42% sand, 15% clay, and 43% silt. According to the soil triangle, which of the following is the soil texture of the soil?
Loam
200
Which biome would have the highest diversity of tree and animal species?
a. tropical rain forest
b. desert
c. tundra
d. seasonal grassland
a. tropical rain forest
200
Which type of soil would be used for the liner of a landfill?
a. soil high in gravel
b. soil high in sand
c. soil high in clay
d. soil high in silt
c. soil high in clay
200
Which tree species probably grows best with full sunlight?
a. tulip poplar b. white oak c. hickory d. beech
a. tulip poplar
200
Algal blooms and eutrophication are usually caused by
a. increased N and P from agricultural runoff from fertilizers
b. the thermohaline circulation
c. the average increase in temperature globally
d. CO2 emissions from burning fossil fuels
a. increased N and P from agricultural runoff from fertilizers
300
In an experiment, a researcher fills three aquariums labeled A, B, and C with seawater collected from a local estuary. To aquarium A, nitrate and phosphate are added. To aquarium B only nitrate is added. To aquarium C only phosphate is added. The results show that algae growth accelerated in aquariums A and B, but not in aquarium C. One conclusion that may be drawn from these results is that
a. phosphate is not required for algae growth in seawater
b. phosphate is a limiting agent for algae growth in seawater
c. for algae in seawater, nitrate is a more essential nutrient than phosphate
d. nitrate is not required for algae growth in seawater
b. phosphate is a limiting agent for algae growth in seawater
300
The graphic below depicts the ways in which phosphorus cycles through the global ecosystems. Which arrow is not part of the phosphorus cycle?
b. arrow B
300
Which statement accurately describes the theory of island biogeography?
a. Larger species generally require more area
b. Larger wetlands will tend to have higher species richness than smaller wetlands
c. Larger islands tend to have greater species richness than smaller islands
d. Greater amounts of habitat diversity are associated with smaller amounts of species diversity
c. Larger islands tend to have greater species richness than smaller islands
300
What is happening at 1?
a. respiration: releasing CO2
b. photosynthesis: absorbing CO2
c. decomposing CO2 in the soil
d. turning CO2 from the atmosphere into organic molecules
a. respiration: releasing CO2
300
The amount of primary productivity generated by all producers in a given ecosystem is called __________________________________ .
a. Gross primary production
b. Total cell respiration
c. Net primary production
d. Trophic levels
a. Gross primary production
400
Which of the following is most likely responsible for the indoor air pollutant shown in the graph?
a. Cracks in the basement foundation
b. Leaking water
c. Synthetic fiber in carpets and furniture
d. Pet hair
a. Cracks in the basement foundation
400
What is the first step in the water treatment process?
a. coagulation
b. flocs
c. filtration and removal of debris, sand, grit, etc.
d. concentration
c. filtration and removal of debris, sand, grit, etc.
400
What is the main effect of thermal pollution to the oxygen solubility in water bodies?
a. They increase the solubility of oxygen in water bodies
b. They reduce the solubility of oxygen in water bodies
c. They maintain the solubility of oxygen in water bodies
d. They don’t cause any affect in solubility of oxygen to the water bodies
b. They reduce the solubility of oxygen in water bodies
400
What process is represented by D?
a. decomposition
b. nitrification
c. assimilation
d. denitrification
d. denitrification
400
The following are advantages of -
Cogeneration power plants can have efficiencies up to 60%; Efficient for cooking, heating, etc.; Fewer impurities than coal or oil
a. Petroleum
b. Coal
c. Nuclear Energy
d. Natural Gas
d. Natural Gas
500
Air pollution from a power plant is being monitored for levels of nitrogen dioxide and ground-level ozone. The levels are measured daily at the same time. Which of the following best predicts the impact of a dark and cloudy day on the readings for the levels of air pollutants measured?
a. There will be no change in the levels of nitrogen dioxide or ground-level ozone.
b. There will be an increase in the levels of both nitrogen dioxide and ground-level ozone.
c. There will be a decrease in the level of nitrogen dioxide and an increase in the level of ground-level ozone.
d. There will be an increase in the level of nitrogen dioxide and a decrease in the level of ground-level ozone.
d. There will be an increase in the level of nitrogen dioxide and a decrease in the level of ground-level ozone.
500
According to NASA, the Arctic sea ice extent was approximately 4.28 million square kilometers in September 2010 and decreased to about 3.74 million square kilometers in September 2020. Calculate the percent change in Arctic sea ice extent from 2010 to 2020.
-12.62%
500
In a grassland ecosystem, the Gross Primary Productivity (GPP) is reported to be 3,000 grams of carbon per square meter per year. The respiration rate is measured at 1,500 grams of carbon per square meter per year. Calculate the Net Primary Productivity (NPP) of the grassland ecosystem.
NPP = 1,500 grams of carbon per square meter per year
500
Ethiopia has a population growth rate of approximately 2.5% per year. Calculate the doubling time for Ethiopia's population using the Rule of 70.
28 years
500
Hopper Hollow has an estimated population of 18,760 bunnies and spans an area of 2,800 square kilometers. Calculate the population density of Hopper Hollow in bunnies per square kilometer.
6.7 bunnies per square kilometer