NEED ASAP MAY BE MULTIPLE Which statements are true about the weight of an object and the buoyant force exerted on that object when it is placed in a fluid?
They work in opposite directions.
They are always equal in strength.
They determine whether an object floats or sinks.

b) phosphorus pentoxide

the answer is b, have negligible mass

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.