Landscape ...... music...
Answer:
I am going to answer the questions in one brief summary of fossil fuels.
Fossil fuels are non-renewable, meaning one day they will run out.
Fossil fuels are reliable, meaning rain or shine we can use them.
Fossil fuels emit greenhouse gases, causing our world to warm up.
It would be uracil (C)
thymine would be complementary to adenine in DNA but because it is RNA it is replaced by uracil.