Carbon
Helium
Nitrogen
Oxygen
Answer is Right!
Answer is Wrong!
The correct answer is C. Nitrogen.
Nitrogen is the most abundant gas in our atmosphere, making up about 78% of its volume. It is also a part of many essential elements to life, such as proteins, nucleic acids, and amino acids.
Carbon is the second most abundant element in the universe, after hydrogen. It is found in all living things, and is also a major component of fossil fuels such as coal and oil.
Helium is the second lightest element in the universe, after hydrogen. It is a noble gas, meaning that it does not react with other elements.
Oxygen is the third most abundant element in the universe, after hydrogen and helium. It is essential for life, as it is used in respiration.
In conclusion, the correct answer is C. Nitrogen.