DSST Environment & Humanity Flashcards
About how long does the methane that is released from biological sources remain in the atmosphere?
12 years
Which layer of the Earth’s atmosphere contains ozone?
Stratosphere
Which three soil nutrients are most commonly supplemented through the use of chemical fertilizers?
Nitrogen, phosphorous, and potassium.
Which of the following might be an abiotic factor in a temperate deciduous forest?
A mountain stream
All energy efficient fuel cells are fueled by some form of…
Hydrogen
Which statement is true about the human impact on marine Ecosystems?
Fish farming results in the spread of disease in wild fish
The United Nations Educational, Scientific, and Cultural Organization’s (UNESCO) mission does NOT include..
Designating and preserving historical sites.
The beginning of the Green Revolution made extensive use of which of the following techniques?
Chemical fertilizers and pesticides
What are the two gases most abundant in Earth’s atmosphere?
nitrogen and oxygen
Exposure to which of the following causes complete decomposition of atmospheric CFCs?
UV radiation
Which of the following are examples of O horizon materials?
loose leaves and organic debris
Consumers that feed at all trophic levels are?
Decomposers
Which of the following is true of the Law of the Sea?
The Law of the Sea aids in the control of mineral resource exploitation in international waters.
Which of the following best describes the role of nitrifying bacteria in the nitrogen cycle?
They convert ammonia to nitrate.
Which of the following countries has the greatest biodiversity?
Brazil
Which of the following human activities has the greatest effect on the nitrogen cycle?
Burning fossil fuels
Most available freshwater is used for which of the following?
Agriculture
A wildlife corridor would be incorporated into a proposal for
sustainable land use strategies
The energy needed by plants for photosynthesis is provided by
the sun
How much warmer is Earth today then the last Ice Age?
5-9F
Which of the following might be a trace element cycling through an ecosystem?
iron
Which of the following is the greatest major source of solid waste in the United States?
mining
Which of the following could be a valid argument against the use of genetically modified organisms?
GMOs may pass on genetic variations to native crops and upset the ecological balance
Which of the following federal agencies regulates the use of pesticides?
Environmental Protections Agency
Which of the following is a type of solar heating that uses pipes to transfer heat to a desired area?
active solar heating
Which of the following processes is important for the role of producers in the carbon cycle?
photosynthesis
