HELP PLEASE! TY A. How are radio waves used to create radar maps?

B. How does reflectivity help meteorologists figure out the weather shown on

radar maps?

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation

Where can a dna be found in a prokaryotic cell

Is there any solid scientific evidence that humans have been cloned?