Why do tropical coral reefs prefer high wave energy locations?
a. They are hard enough to sustain themselves during the wave action.
b. They receive less sunlight in these areas.
c. They become the first to obtain dissolved gases and food particles.
d. They need high levels of sunlight
ANS: C
The high wave activity ensures a constructive and destructive balance in coral reefs. The waves move
nutrients and dissolved gasses with every pass towards the coral. Information can be found in the
section Examples of Marine Communities
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When the current in a lamp is increased, the lamp glows
A. as before. B. dimmer. C. brighter. D. none of the above
Characteristic of central Australia:
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.
A flowerless, seed-bearing plant is called a(n) ____
a. echinoid b. sponge c. gymnosperm d. angiosperm e. crinoid
Why is sediment yield an important consideration in a discussion of water supplies?
A) Sediment yield affects the amount of water that is available. B) Water resources and sediment resources are closely intertwined. C) Sediment is a common water pollutant. D) Soil erosion restricts water flow to streams.