The ________ is an example of an invasive species that is having a major impact on North American waterways
Fill in the blank(s) with correct word
Asian carp/zebra mussels
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Why are soils considered one of our most precious natural resources?
Which of the following would be an example of urban gentrification?
A) the movement of young urban professionals from a major city like Minneapolis to a smaller nearby community, such as Mankato, in order to take advantage of lower housing costs B) an urban design movement which stresses high-density, mixed-use, pedestrian-scaled neighborhoods where residents are able to walk to work, school and shopping centers C) the building of office parks and complexes along the periphery of a major city, such as Costa Mesa, located south of Los Angeles D) the movement of minority populations from the urban core into the suburbs E) the displacement of low-income inner city residents so as to revitalize an inner city with new shopping, entertainment and office plazas, often taking advantage of historic urban architecture patterns, such as Pioneer Square in Seattle and the Inner Harbor of Baltimore
The primary source for free oxygen introduced into the atmosphere during the Proterozoic was through
photosynthesis. a. True b. False
True or False: Sedimentary rocks are the most common rocks on Earth's surface
Indicate whether this statement is true or false.