You are presented with the question "What is the chemical element with symbol N and atomic number 7 found in?" and the following answer choices: 
- Chlorophyl
 - Petals
 - Mitochondria
 - A Greek letter
 - Cytoplasm
 - acetic acid
 - Acids
 - fossil fuels

Now knowing that nitrogen is found in proteins, nucleic acids, and chlorophyll and absorption of nitrogen by plants is part of the nitrogen cycle , choose the best answer.


 

 Chlorophyl        