Limestone turns into marble when there is a great amount of heat and pressure. Identify the change within the rock cycle which takes place when limestone changes into marble. a. metamorphic rock to sedimentary rock
b. sedimentary rock to metamorphic rock
c. igneous rock to metamorphic rock
d. sedimentary rock to igneous rock

The answer would be A

Explanation:

An example of contact metamorphism is the metamorphic rock marble. Marble is created from limestone that has been subjected to heat. Regional metamorphism by contrast takes place over large areas and is high-grade metamorphism. ... It is mostly a metamorphic rock called gneiss.

the correct answer is:   "   3.6 % " .

          →   the unemployment rate is:   " 3.6 % " .

explanation:

to calculate the "unemployment rate" :

the "unemployment rate"   =

  [# of people unemployed] /   [working age population]   * 100 %   ;

                =   [9 million] / [250 million]     *   100 % ;

    →     note:   the units of "million" cancel out;

                    since:   " {million} / {million} = 1 " ;

                =   (9 / 250)   * 100 %   ;

                = 0.036 * 100 % ;

                =   3.6 %

answer:   the unemployment rate is:   " 3.6 % " .

um how much