Justin and Kenneth have been best friends for as long as they can remember. Kenneth loves to run, but Justin hates to exercise. Recently, they both went for an annual checkup at the doctor, and they are comparing their blood test results. Based on the information you know, which of the following is most likely true?

Justin will have higher level of hemoglobin.

Explanation: athletes have an increased total mass of red blood cells and hemoglobin in circulation.

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.