The questions in the attachment

Can you think of a way a rock unit with an older fossil could be above a rock until with a younger fossil? describe the scenario.

Are aliens real? justify you’re answer.

A-4.60 μc charge is moving at a constant speed of 6.80×105 m/s in the +x−direction relative to a reference frame. at the instant when the point charge is at the origin, what is the magnetic-field vector it produces at the following points.