Question

which of the following is an inference?
a burning candle is extinguished when it is covered with a jar.
the candle burns longer than expected in a jar that has a plant in it.
a plant lives longer than expected in a jar that has a burning candle.
there is more oxygen in the jar because there is a plant in it.

Explanation:

Una inferencia es una conclusión basada en evidencia y razonamiento. Las opciones A, B y C son observaciones directas. La opción D es una inferencia ya que se deduce la presencia de oxígeno (no observable directamente en este caso) a partir de la presencia de una planta (que produce oxígeno a través de la fotosíntesis).

Answer:

D. There is more oxygen in the jar because there is a plant in it.