What did the German Meteor expedition discover during their 1925 crisscross across the South Atlantic for 2 years?
A) ?a completely flat ocean floor
B) ?the deepest part of the ocean's deepest trench
C) ?a varied and often extremely rugged bottom profile
D) ?evidence for seafloor spreading and plate tectonics
C
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Aquaculture would be more sustainable if
a. consumers chose to eat fish species that are primary consumers instead of secondary consumers b. consumers chose to eat top predators c. fish farms were located near mangrove forests d. fish farms were located near estuaries e. chemical pesticides were used to control common fish diseases
Acid precipitation
A. is caused primarily by vehicles exhaust. B. has little effect on forests. C. increases in areas with greater rainfall. D. has less effect in areas with where the soil is formed from sedimentary rock.
Placer gold deposits were accumulated by stream processes
a. True b. False
Hurricanes
A) have both warm and cold fronts. B) contain numerous thunderstorms arranged in a pinwheel formation. C) have maximum windspeeds near their outer edges. D) have minimum precipitation just outside the eyewall.