Which is most likely to cause a mass extinction

Based on the law of conservation of energy, which statement is false? answer- energy is lost when machines dont work right

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

How can one make a supersaturated solution? (apex)