Since the Industrial Revolution, ______________ has increased the amount of heat-trapping greenhouse gases in the atmosphere.
-human activity
-automobile traffic
-urbanization
-population growth
-deforestation
-human activity
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Select the human activity or program that has proven to be the most effective for protecting each of the listed species:
a. international regulatory laws b. U.S. regulatory laws c. wildlife refuges d. botanical gardens e. captive breeding programs 10. gray wolf 11. peregrine falcon 12. butterflies 13. California condor 14. Florida's key deer 15. whales 16. American bison
____________________ are deep underground sources of freshwater found between the porous geological layers of sand, gravel, or bedrock
Fill in the blanks with correct word
The ocean environmental zone having low temperature, little or no light, and great pressure is the ________ zone.
A. benthic B. photic C. neritic D. abyssal E. littoral
What were some key consequences from the break-up of Pangaea?
a. Rise of sea level, increase of shallow marine habitat, species diversification, climate change - mild and warm b. Rise of sea level, decrease of shallow marine habitat, species diversification, climate change - mild and warm c. Lowering of sea level, decrease of shallow marine habitat, increased species extinction, climate change - mild and warm d. Lowering of sea level, increase of shallow marine habitat, species diversification, climate change - increased glaciation