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WAEC Agricultural Science 1994 Question 14

Question 14

Rocks and Soil Formation

In which of the following ways are metamorphic rocks formed?

  1. A.By physical disintegration of igneous rocks
  2. B.By alternative layering of particles of sedimentary and igneous rocks
  3. C.By the combination of igneous and sedimentary rocks
  4. D.Through biological change of original rock
  5. E.Through chemical changes caused by heat and pressure.
Show the answer and explanation

Answer: E (Through chemical changes caused by heat and pressure.)

Explanation

Heat and pressure change existing rocks into metamorphic rocks.