It was the plants around us. They give us air to breath. It was to help us breath so we can live.
Answer:
confirm the results if you're using edge
Explanation:
<span>because it could lead to the ocean currents warming up</span>
Answer: Adenina
Explanation:
Base nitrogenada: una molécula que contiene nitrógeno y tiene las propiedades químicas de una base. Las bases nitrogenadas en el ADN son adenina (A), guanina (G), timina (T) y citosina (C). Las bases nitrogenadas en el ARN son las mismas, con una excepción: adenina (A), guanina (G), uracilo (U) y citosina (C).