Question

the table indicates that nitrogen and oxygen are the main components of the atmosphere by volume. together these two gases make up approximately 99% of the dry atmosphere. why are these gases important? they are essential to life on earth. they have a great influence on climate. they absorb ultraviolet radiation from the sun. they increased over time causing global warming they increased over time causing global warming - no response given

Explanation:

Nitrogen is a key component of amino acids (the building blocks of proteins) and nucleic acids (like DNA). Oxygen is essential for cellular respiration, the process by which cells convert nutrients into energy. Without these two gases, life as we know it on Earth would not exist.
Carbon - dioxide and water vapor have a great influence on climate. Ozone absorbs ultraviolet radiation from the sun. Greenhouse gases like carbon - dioxide (not nitrogen and oxygen) are related to global warming.

Answer:

They are essential to life on Earth.