Where is the seaward limit of a beach?
a. Longshore bars
b. Berms
c. Where the longshore drift is the strongest
d. Where the sediment movement onshore and offshore ceases
e. Where the vegetation or dune line begins
d
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Which of the following is the range of wavelengths corresponding to the maximum amount of radiation emitted by the sun?
A. 0.5 micrometre B. 1 micrometre C. 10 micrometres D. 30 micrometres
The largest sand dunes in dry climates can stretch
a) hundreds of meters b) tens of meters c) hundreds of kilometers
Hydrogenous sediments of the deep-ocean floor predominate in regions where other sediment sources are reduced.
Answer the following statement true (T) or false (F)
Which of the following is NOT a way in which fossils can be preserved?
A. They can be too small to see but can build diagnostic features in the rocks. B. They can be buried and decay, leaving a cavity in the rock. C. They can be preserved in ancient tree sap. D. They can be replaced by hard materials, such as silica. E. All of these are ways a fossil can be preserved.