Habitat fragmentation occurs when a habitat is broken into smaller areas by a man-made activity such as road-building, logging, or urban development. Why is this a cause of ecological concern?
What will be an ideal response?
These habitat islands isolate populations of organisms into smaller groups vulnerable to environmental disturbances such as disease and fire. The barriers block migration routes which affects organisms ability to disperse for finding food and mates.
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The three principles of sustainability are chemical cycling, reliance on solar energy, and ____________________
Fill in the blanks with correct word
Spring tide occurs only ____
a. during new and full moon b. at both equinoxes c. once a year d. in the months of spring
Of the following greenhouse gases, which have actually decreased in atmospheric concentrations during the past 30 years?
A) Chlorofluorocarbons (CFCs) B) Nitrous oxides (N2O) C) Methane (CH4 ) and carbon dioxide (CO2 ) D) HFCs
Which region would have the best potential for solar energy?
A) Alaska
B) Iowa
C) Arizona
D) Georgia