Which energy resource does not give off atmospheric pollutants?

a. Natural gas
C. Nuclear energy
b. Coal
d. Burning wood

Most scientific questions are based on opinions. hypotheses. observations. experimental data.

Analogy- 1 is to arete as 5 is to cirque horn glacial valley hanging valley

Which best explains why viruses do not have special structures or enzymes that allow them to make their own food? viruses can use energy in living cells that they infect. viruses can replicate inside a host that they infect. viruses can cause contagious illnesses in host cells. viruses integrate their rna or dna into infected cells.