Which best describees the meaning of luster in relation to minerals?

What is thought to have caused the mass extinction at the end of the cretaceous period?

50 points! 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.

What happens when two nitrogen atoms share electrons