Answer:
B. Evidence from rock layers, fossils, and ice cores.
Explanation:
Right i believe
DNA = thymine, Guanine , adenine and cytosine .
RNA = thymine ,uracil,guanine ,cytosine
Answer:
Funding for alternative energy search often changes with the cost of fossil fuels. It is also influenced by investments in stopping pollution and conserving natural resources. For example, an energy crisis in the 1970s led to more funding for oil alternatives.
Explanation:
