Alguien me puede explicar qué significa que un profesor te diga "sobras 3era evaluación" ? Ayudarmee plisss

Which property of fossils allow scientists to determine the relative rock ages..

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.