Why are the deep ocean basins covered with red clay deposits?
a) Red clays are formed from submarine weathering of other sediments.
b) Clay particles are carried to the middle of the oceans by wind and currents.
c) Only the deep ocean has the right pressure, temperature, and oxygen conditions to form red clay.
d) Red clay dominates because of the near absence of other lithogenous and biogenic particles that would otherwise dilute it.
e) Clay is formed at hydrothermal vents, which are found in the deep sea.
D
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When it is January and winter in the Northern Hemisphere, it is ____ and ____ in the Southern Hemisphere
a. January; summer b. January; winter c. July; winter d. July; summer e. March; spring
Cool air holds more moisture than warm air, and this explains why there is more precipitation in the summer months
Indicate whether the statement is true or false
Black smokers along the Juan de Fuca Ridge are responsible for massive sulfide deposits
Indicate whether this statement is true or false.
What characteristics of lionfish contribute to their ability to spread and become established in new areas?
a. Lionfish are specialists, consuming just a few types of shrimp, which are widespread in the Caribbean. b. Lionfish typically migrate in large schools to other reefs, where they breed together producing giant egg masses, which cling to the bottom of the coral reef. c. Lionfish are very good at avoiding predators by hiding in small cracks. Their color is also an excellent form of camouflage. So, lionfish can spread to new locations without being detected. d. A single lionfish female may produce up to 2 million eggs a year. The eggs float for up to a month, spreading the lionfish populations.