Environmental Science Exam 5 37. Lake Cayuga in upstate New York is about 61 km
ID: 271494 • Letter: E
Question
Environmental Science Exam 5 37. Lake Cayuga in upstate New York is about 61 km long and 3 km wide, with an viror depth of 132 m. Strong winds occasionally push the warm surface wage shore, which allows the upwelling of the cooler deep water. Why would h oe beneficial for the ecosystem in the lake? student Stuus that toge 42. 38. Look at the 2015 Hardiness Zone Map of the United States at the end of this exam A. A. What is the number of the hardiness zone for Chicago? B. What is the range of the average annual low temperature for Chicago? C. Compare the 2006 and 2015 maps at the end of this exam. What changes in the hardnes B. C. zone maps does this information show? Homeowners who live near bodies of water in the state of New Hampshire are asked to check all home cleaning products to make sure that they do not contain phosphates. Why was this regulation put in place? What does the ban on phosphates help prevent? 39. 40. Would the aerial photograph to the left seem to indicate that the river (water appears as black) is a mature or immature river Explain your reasoning. Look at this picture of rocks on a beach. How have wa rocks? 41. Ves theseExplanation / Answer
Ans: 37: Usually in upwelling brings minerals from the bottom of the lake and helps in the growth of the phytoplankton, this in turn helps in plankton dependent aquatic organisms/animals to survive. Once the food chain starts entire ecosystem will be developed from producers to topmost consumers.
38. A. Hardiness or plant hardiness in US is a zone which refers to minimal temperature zones in which plants able to survive. Chicago is categorized as being in zone 5b where minimum temperatures range from -10 to -15° F or -23.3 deg C to -26.1 deg C.
B. Average annual low temperature for Chicago is 18 ° F or -7.7 deg C
C. Is clearly showing increase in temperature that is changed through -10 to -20° F to 0 to -10° F
39: the regulation placed because phosphate detergents through sewage or runoff rain water enter waterbodies of new Hampshire. Which results in algal blooms, when these blooms die they will get putrified at the lake bottom releasing carbon dioxide which deprives oxygen to aquatic animals and they die. Due to this entire ecosystem will be disturbed. Phosphate is verymuch required for the growth of the organism to make DNA, cell membranes, ATP, cellular signalling etc. life on earth is phosphate oriented hence phosphates increase the algal blooms. Banning phosphate helps in preventing algal blooms and prevents man made pollution and disturbance of the natural ecosystem in the lakes.
40. It is a mature river. Mature rivers are in between rivers of youthful and old age rivers and their characteristics also in-between. The characteristic features of a mature river are deeperthan old age rivers but not as deeper as immature rivers. Will form grasslands on the banks, whereas old age rivers form marshes and immature rivers have steep slopes with rapids. In mature rivers water speed is medium, where as in immature rivers its fast and in old age rivers its slowest. Sediments in mature rivers is medium and water appears dark or dark green and immature rivers does not carry or minimally carry sediments and its lowest, hence water appears blue or light green. Old age rivers carry lot of sediments and its highest hence waters appear muddy and dark.
41. picture is not clear. But I feel these are igneous rocks formed from molten lava. Fresh flows look like slabs. Upon hitting with waves and salt water they break apart and edges appear sharp surfaces become pointed
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