Utilizing a four-crop rotation method increased agricultural yields around the world because this practice a. returns lost nutrients to the soil b. employs the use of chemical fertilizers c. protects farmers in case one crop fails d. increases soil erosion and depletion

Aresearcher is studying women recently admitted to a state prison. all potential subjects must have children under the age of five. research subjects will be given a basket of toys to use at their children’s first visit that the children can then take home. in assessing this proposal, the irb needs to determine that the toys are: age appropriate.not an excessive incentive.educational.of high quality.

Does increased security engender feelings of increased safety or does it increase the fears that people have?

Which georgia shipyard produced 88 liberty ships?