Answer:
The correct answer is:
A) They get a sense of the history of the area they are investigating
Explanation:
The age of the rocks located in the different layers is estimated because the absolute age is checked by measuring the radioactive decay of the isotopes of the elements.
The density of a rock depends on both its mineral composition and its porosity and various procedures are necessary to determine the reliable average values.
The value of the rocks is relative and is determined based on the objectives of the geological survey.
Answer:
c. stone even though u put it in ur question but ok
Explanation:
Ocean engineers could combat the corrosive ocean water by investing a new material which does not corrode in the ocean. Ocean engineer are prepared people to make a build systems that monitor an control coastal environment.
For preventing corrosion requirement of elimination or suppression using two principal methods, cathodic protection and coatings. They are normally, cathodic protection system are used in conjunction with coating systems.
Main objective or aim of the cathodic protection is to suppress the electrochemical reaction taking place. These engineers and naval architects work along the coast- both offshore and land.Sometimes these engineers work on oil rigs, where they oversee the repair of system that they may have design.
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