PLEASE HELP ME :(

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.

The carrier molecules of the electron transport system are located in the

I'll make you brainliest this is a really easy question it's 6th grade it's just that i'm really lazy to search it up seriously brainliest and it's really easy: what is one good thing about cement production? what is one bad thing about cement production?