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25 Cards in this Set
- Front
- Back
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T/F According to the first law of thermodynamics energy can not be created; it changes forms.
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True
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T/F The hydrologic cycle describes how hydrocarbons move through the Earth's systems.
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False
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T/F Fossil fuel combustion, deforestation and volcanoes all put carbon dioxide into the atmosphere.
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False
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T/F The highest net productivity is in the far northern and southern parts of the globe.
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True
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T/F Autotrophs and heterotrophs feed off each other.
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False
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T/F The disappearance of a species from Earth is called adaptation.
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False
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T/F A high percentage of the Earth's surface is composed of freshwater- that's why it is called the water planet.
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False
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T/F Hydrogen ions determine acidity
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True
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T/F Atoms bond to form molecules and compounds.
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True
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Which of the following part of an atom has a positive charge?
a. Proton b. Neutron c. Electron d. Hydrogen e. Neutrix |
a. Proton
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Geographic information Systems (GIS) are:
a. useful in tracking the movements of bacteria b. used to create rainfall and temperature changes in the ecosystems c. used to measure the economic value of ecosystem services d. helping conservation biologists study habitats and biodiversity e. useful in determining the number of heterotrophs in an ecosystem |
d. helping conservation biologists study habitats and biodiversity
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Among these choices, the greatest storage site of water in the hydrological cycle is ____
a. oceans b. soil water c. ground water d. man-made dams e. precipitation |
a. oceans
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Nucleic acids, proteins, carbohydrates, and lipids are:
a. elements that make up the body b. elements that make up life as we know it c. inorganic compounds d. organic compounds necessary for life e. radioactive with small half-lives |
d. organic compounds necessary for life
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Sugars, starches, and glucose are all:
a. lipids b. proteins c. carbohydrates d. nucleic acids e. synthetic molecules |
c. carbohydrates
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A wolf is most likely a:
a. producer b. primary consumer c. secondary or tertiary consumer d. decomposer |
c. secondary or tertiary consumer
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Coal, oil, and natural gas are:
a. producer b. renewable c. synthetic d. hydrocarbons e. a and d |
e. a and d
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In the process of _______ autotrophs such as green algae and plants use the suns energy, water, and carbon dioxide from the air to produce new biomass and feed themselves.
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photosynthesis
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Which of the following is an ecosystem service?
a. water purification in wetlands b. climate regulation in the atmosphere c. nutrient cycling in ecosystems d. pollinating plants e. all of the above |
e. all of the above
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Oysters disappeared from Chesapeake Bay due to:
a. farm waste b. sewage waste c. industrial waste d. overharvesting e. all of the above |
e. all of the above
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The wavelengths of solar energy that are used by plants are:
a. all within the invisible spectrum b. red and blue c. green d. all wavelengths equally e. gamma and radio |
b. red and blue
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The symptoms of the lake suggest:
a. eutrophication b. pesticide poisoning c. overfishing d. that all the problems have been created by the deforestation e. the effects of global climate change |
a. eutrophication
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The murkiness (turbidity of the water was analyzed and found to have several major sources, including:
a. algae, increased microscopic animal life and pesticides b. erosion from the deforested hillsides, suspended sediments produced from poorly treated wastewater discharge, and the increased micro and macroscopic plant biomass of the lake c. fertilizer particles, wind-borne atmospheric particles and wastewater discharge d. pesticides, atmospheric deposition and wastewater discharges e. erosion from the hillsides, nitrogen and phosphorus from agricultural fertilizers and numerous microscopic animals living in bottom sediments |
b. erosion from the deforested hillsides, suspended sediments produced from poorly treated wastewater discharge, and the increased micro and macroscopic plant biomass of the lake
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An expert found that dissolved phosphorus and nitrogen levels in the lake were more than ten times what they were seventy years ago. The primary sources of these high levels are very likely from:
a. natural atmospheric phosphorus and nitrogen fixation b. agricultural and urban fertilizer runoff as well as increased urban wastewater discharges c. soil particles eroded from the deforested watershed d. the changes in dissolved oxygen levels e. the increased algal biomass in the lake |
b. agricultural and urban fertilizer runoff as well as increased urban wastewater discharges
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A water quality expert checked the level of dissolved oxygen in lake water and found it:
a. was much higher than normal b. very low at the surface and normal near the bottom sediments c. was within normal limits for an unpolluted lake d. absent entirely e. was low- normal on the surface but extremely low near the bottom sediments |
e. was low- normal on the surface but extremely low near the bottom sediments
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A task force composed of water quality chemists, environmental landscape experts, townspeople and corn growers meet and share information. They decide that they must focus on ___ in the initial efforts to restore the lake.
a. closing the wastewater treatment plant and reducing agriculture by 75% b. reducing fertilizer inputs into the lake by exploring alternative farming techniques, increasing the efficiency of the wastewater plant and using aerators to increase oxygen levels in the areas where streams flow into the lake c. banning agriculture from the entire region d. restoring biodiversity to the deforested areas and closing the wastewater plant e. reducing the population of the town by 50% and agriculture by 50% |
b. reducing fertilizer inputs into the lake by exploring alternative farming techniques, increasing the efficiency of the wastewater plan and using aerators to increase oxygen levels in the areas where streams flow into the lake.
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