Which of the following is not a characteristic of organic farming? a. the use of natural fertilizers b. the use of crop rotation and mulch c. the use of insects and birds to reduce pests d. the use of genetic modification to avoid using pesticides

congress failed to remove johnson. but it did succeed in getting control of efforts to re-build the south following america's civil war. radical republicans wanted to punish the south for starting the war. they also wanted to be sure new governments in the southern states would support the republican party.