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Human Impacts on Ecosystems

Cindy Nguyen 13 questions

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Questions in this quiz (13)

  1. 1Three activities that humans do that affect ecosystems are: building [blank_start]dams[blank_end], [blank_start]cutting[blank_end] forests, and [blank_start]converting[blank_end] natural lands.
    1. Adams
    2. Bcutting
    3. Cconverting
  2. 2The indirect effects of human activities are [blank_start]climate[blank_end] change due to increased [blank_start]greenhouse[blank_end] gases, [blank_start]biodiversity[blank_end] loss due to [blank_start]wildlife[blank_end] destruction, and polluted [blank_start]coastal[blank_end] environments due to increase runoff.
    1. Aclimate
    2. Bgreenhouse
    3. Cbiodiversity
    4. Dwildlife
    5. Ecoastal
  3. 3The name of the current geologic epoch is [blank_start]anthropocene[blank_end].
    1. Aanthropocene
  4. 4Atmosphere:
    Humans [blank_start]pollute[blank_end] the air with many different molecules. Increased levels of [blank_start]carbon[blank_end] dioxide are the result of burning [blank_start]fossil[blank_end] fuels and changes in [blank_start]land[blank_end] use. The increased levels of [blank_start]nitrous[blank_end] oxide are due to the increased use of [blank_start]fertilizers[blank_end]. The increased levels of [blank_start]methane[blank_end] are due to irrigated [blank_start]agriculture[blank_end] and raising of [blank_start]cattle[blank_end].
    1. Apollute
    2. Bcarbon
    3. Cfossil
    4. Dland
    5. Enitrous
    6. Ffertilizers
    7. Gmethane
    8. Hagriculture
    9. Icattle
  5. 5Biodiversity:
    About [blank_start]900[blank_end] species have become extinct in the past [blank_start]500[blank_end] years. The pace of extinction has [blank_start]accelerated[blank_end].
    1. A900
    2. B500
    3. Caccelerated
  6. 6Cities:
    Human population is currently over 7 [blank_start]billion[blank_end]. This results in [blank_start]increased[blank_end] demands for land, water, food, and energy.
    1. Abillion
    2. Bincreased
  7. 7Coastal Habitats:
    These habitats have been [blank_start]exposed[blank_end] to pollution due to [blank_start]agricultural[blank_end] runoff. The runoff carries [blank_start]nitrogen[blank_end] & [blank_start]phosphorus[blank_end] into water which feeds [blank_start]plankton[blank_end]. High plankton results in [blank_start]suffocation[blank_end] of underwater organisms.
    1. Aexposed
    2. Bagricultural
    3. Cnitrogen
    4. Dphosphorus
    5. Eplankton
    6. Fsuffocation
  8. 8Farming:
    Natural land is [blank_start]cleared[blank_end] for agriculture. This results in [blank_start]increased[blank_end] levels of carbon in the atmosphere and a loss of [blank_start]biodiversity[blank_end].
    1. Acleared
    2. Bincreased
    3. Cbiodiversity
  9. 9Forests:
    Forests have been [blank_start]cleared[blank_end] for human development & agriculture. This changes [blank_start]habitats[blank_end] of other species which may lead to their [blank_start]extinction[blank_end].
    1. Acleared
    2. Bhabitats
    3. Cextinction
  10. 10Invasive Species:
    These species get introduced as a result of global [blank_start]trade[blank_end] and [blank_start]travel[blank_end]. They change the [blank_start]makeup[blank_end] species that are already living in that environment. Since they are newly introduced, native species have no protection against them and can die due to the [blank_start]competition[blank_end].
    1. Atrade
    2. Btravel
    3. Cmakeup
    4. Dcompetition

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