A group of students is trying to determine which detergent will best remove an oil stain that stain five separate cloths with oil and then wash each of the cloth and a different detergent they repeat each test two more times which step should be included in their investigative plan

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

genetic variation will increase because of a new habitat and food source.

explanation:

c. heat from the poles back down towards the equator.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.