Dr. Perry has students come to her research laboratory and fill out a detailed calendar that captures whether they were sexually active during the past month and what they did each time they were sexually active. Research assistants monitored the students through a closed circuit video system, and returned to the lab to debrief the participants when they appeared to be finished with their calendar. This is an example of what type of research?

Survey Research

Explanation:

Survey Research is a type of research that involves the use of surveys to collect data. It is a quantitative approach by which list of questions are administered by phone, in person, paper or online, to  a certain group of people or a population, for the purpose of getting data about a particular topic or issue. This method of research is flexible and can involve a wide variety of applied questions to pool data together.

From the example, Dr Perry made use of survey research.

acid rain is the answer

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.