Describe the three types of reefs that are formed. Can you hypothesize why they are important? What will be an ideal response?
ANS:Answer
should include:
? Fringing reefs cling to margins. They are common in areas that have low rainfall runoff,
mainly leeward sides of tropical islands. Salinity and water clarity are dependable in
these reefs. Fringe reefs establish on new tropical islands.
? Barrier reefs separated from land by a lagoon. These reefs occur at lower latitudes than
fringe reefs. They are parallel to continental shores. The seaward side grows rapidly due
to an abundance of food. The lagoon side is much slower to grow because there is a
great deal of sediment and freshwater and a lack of nutrients.
? An atoll is a ring-shaped island of coral reef. There is an enclosed or nearly enclosed
lagoon in the center. There is no land protruding at an atoll. The central lagoon connects
to the deep water outside via channels. The corals are not able to thrive within the
lagoon.
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Mollisols and aridisols:
From Table 29.1, the biome map, and the climate map, determine the terrestrial biome that best characterizes each of the following descriptions and write its name on the first line provided. On the second line, relate it to temperature and precipitation regimes and/or global pressure and wind belts outlined at the end of Section 1.
Which of the following is a renewable resource?
A) gas B) hydroelectric power C) coal D) plutonium
Which hypothesis proposes that early modern humans established separate populations throughout Eurasia, and had
occasional interbreeding between populations? a. tandem evolution hypothesis b. out of Africa hypothesis c. Eurasian origination hypothesis d. multiregional hypothesis e. migrational hypotheses
What surface features do Mars and Earth have in common?
What will be an ideal response?