Why do scientists have to have both methods, absolute and relative dating for rocks/fossils?

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?

Which of these would most likely be a stimulus that would cause the body to initiate feedback mechanisms a.) normal body temperature in an arctic environment b.) normal boy temperature in a tropical environment c.)light physical activity d.)low blood sugar