Which of the following statements best explains the effects of soil erosion? A.
Soil erosion makes land arable by adding nutrients to the topsoil.
B.
Soil erosion occurs only in places with natural vegetation, forcing farmers to clear more land.
C.
Soil erosion adds too much fertilizer to the soil, causing plants to grow too quickly.
D.
Soil erosion weathers away the topsoil and its valuable nutrients.

Awaiver of the requirement for documentation of informed consent may be granted when: the investigator has no convenient place to store signed consent forms separate from the research datathe only record linking the subject and the research is the consent document and the principal risk is a breach of confidentiality.potential subjects might find some of the research questions embarrassing, personal, or intrusivethe subjects are literate in their own language; however, they do not read, write, or speak english

Name three things the framers of the constitution did to keep the federal government or any part of it from becoming too powerful.

A“carpetbagger” would have been most likely to come from which state?