An ecosystem is an example of a(n) _______________ system since energy and matter are freely exchanged at its boundaries

Fill in the blank(s) with correct word


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Environmental & Atmospheric Sciences

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If a species of frogs becomes threatened because they can only live in a narrow range of temperatures, they would be classified as a(n) ____________________

Fill in the blanks with correct word

Environmental & Atmospheric Sciences

Benthos animals include sponges and corals

a. True b. False Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

What organization conducted the largest scientific program attempted by physical oceanographers?

a. International Geosphere-Biosphere Programme (IGBP) b. Integrated Ocean Drilling Program (IODP) c. Ridge Interdisciplinary Global Experiment (RIDGE) d. World Climate Research Programme (WCRP)

Environmental & Atmospheric Sciences

One major reason why lakes and marshes are common in recently glaciated areas is because:

a. those areas have very humid climates. b. a huge amount of water was released by the melting of the ice. c. the glaciers carved dendritic stream systems. d. when the ice disappeared, sea level dropped, leaving much standing water stranded on the land. e. preexisting drainage was reshaped and blocked by glacial erosion and deposition.

Environmental & Atmospheric Sciences