Calcareous shells will not accumulate on the ocean floor when the water depth exceeds about 4500 meters (around 15,000 feet).

a. true
b. false

Which pronoun has an unclear antecedent in the following sentences? the sixth-grade students liked volunteering their time to read to the elderly people in the hospital. it made them happy. a. their b. it c. them d. no unclear antecedents

Aman is charged a fee by the city for having numerous broken cars and auto parts in his front yard. which of the following correctly best describes why the city punish him? he has committed a crime. he is in violation of a city statute. he has violated an amendment of the u.s. constitution. a judge has decided that he is in violation of civil law.

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.