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.

The correct answer is option D, There is more oxygen in the jar because there is a plant in it.

Explanation:

An inference is a conclusion derived on the basis of observation from instances. Like in this case the researcher observed that when a candle is burned inside a jar with a plant, the candle burns longer than when it is burned inside a jar without a plant.  From this researcher derived the inference that since plant release oxygen during respiration,  candle was able to burn a little longer .

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

Explanation:

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.