which describes oxygen content as earth evolved over time?\noxygen levels sharply declined about 400 million…

which describes oxygen content as earth evolved over time?\noxygen levels sharply declined about 400 million years ago.\noxygen levels stay above 15 percent starting 200 million years ago\noxygen levels remain below 5 percent starting 1000 million years ago.\noxygen levels raise significantly between 1000 and 700 million years ago.

which describes oxygen content as earth evolved over time?\noxygen levels sharply declined about 400 million years ago.\noxygen levels stay above 15 percent starting 200 million years ago\noxygen levels remain below 5 percent starting 1000 million years ago.\noxygen levels raise significantly between 1000 and 700 million years ago.

Answer

Answer:

Oxygen levels stay above 15 percent starting 200 million years ago.

Brief Explanations:

Al mirar el gráfico, se ve que a partir de hace 200 millones de años, los niveles de oxígeno se mantienen por encima del 15 por ciento. Las otras opciones no se ajustan a la información del gráfico.