Manganese and phosphorite nodules can only be observed in areas of high sediment accumulation
Indicate whether the statement is true or false
False
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This seismic hazards usually deals requires steep slopes.
a. After shocks b. Ground shaking c. Landslides d. Liquefaction e. Tsunami
Cratons formed first in Proterozoic and then led to supercontinents.
a. true b. false
In the Proterozoic Eon, the atmosphere began to accumulate significant oxygen. This is called ___.
a. the life explosion b. the global oxygen c. the transition event d. the great oxygenation event
________ is the federal agency responsible for preventing soil erosion and protecting waterways in agricultural areas of the United States
A) Natural Resources Conservation Service B) Soil and Water Conservation Service C) Soil Degradation Minimization Service D) Agricultural Standards Agency E) Agricultural Conservation Service