Is cellphone is made from renewable resources * true or false

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

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.

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?