What two additional categories of evidence supported the original seafloor spreading hypothesis?

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer