The Montreal Protocol banned the use of CFCs. What so they hope this will do for the ozone layer?

Deplete it completely

Make the ozone hole smaller

Make the ozone hole larger

Thin the layer to allow more gas to escape

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.