A volcanic eruption produces lava, ash and gases. ... Volcanoes cause limited erosion directly; the underside of a new lava flow scours topsoil or loosely consolidated sediments. Volcanic eruptions are the indirect causes of substantial erosion through the action of volcanic debris on the atmosphere, land and water.
Answer:
Quota sampling
Explanation:
Quota sampling is a form of sampling techniques used in carrying out research studies. It involves, the use of special or specific characteristics to determine the respondents to pick by the researcher. After that, a required sample size is then picked from the population of interest. It is considered to be a non-probability sampling procedure.
Hence, in this case, when Ingrid first of all, used a certain characteristics to pick participants, the characteristics is participants from General Psychology Classes only.
The she will pick from the General Psychology Classes only, a certain proportion that will reflect University population in terms of ethnicity.
Therefore, this technique or sampling procedure is termed as QUOTA SAMPLING.
I think it will be true !
The answer is going to be Life Science.