Can someone help me with this?

Select all the true statements about the cosmic microwave background radiation

4. how does a phospholipid behave in water? the phosphate head does not mix with water; the fatty acid tails do. the phosphate head and the fatty acid tails mix with water. the phosphate head and the fatty acid tails do not mix with water. the phosphate head mixes with water; the fatty acid tails do not.

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into