The oldest rocks studied by scientist from sources within our solar system are approximately four.5 billion years old the rocks found on earth are approximately 4.3 billion years old this observation supports the conclusion that Earth formed at more or less the same time as other objects in the solar system what evidence would not fit the conclusion require a reversion of the theory

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

The substances that are necessary for producing of certain hormones and that store and transport vitamins

To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the conductor. a conductor is placed in an external electrostatic field. the external field is uniform before the conductor is placed within it. the conductor is completely isolated from any source of current or charge. part a: which of the following describes the electric field inside this conductor? it is in the same direction as the original external field.it is in the opposite direction from that of the original external field.it has a direction determined entirely by the charge on its surface.it is always zero. part b: the charge density inside the conductor is: 0non-zero; but uniformnon-zero; non-uniforminfinite part c: assume that at some point just outside the surface of the conductor, the electric field has magnitude e and is directed toward the surface of the conductor. what is the charge density η on the surface of the conductor at that point? express your answer in terms of e and ϵ0