2. In 1945 a U.S. Air Force bomber accidentally crashed into the Empire State Building, killing fourteen people and damaging the 78th and 79th floors.
4. No infinitives are used. Sentence 4 contains a gerund.
5. includes Steve writing about himself in the first person.
That what i got and if any incorrect then sorry I try my best.
C. according to Earth's existing magnetic field.
Nucleic acids are biochemical macromolecules that store and transfer genetic information in the cell. They use their stored genetic information to direct the synthesis of new proteins in the cell. New proteins can be synthesized by the ribosomes from the DNA and genes held in the nucleic acids.