Answer:
Pilot Survey
Explanation:
Pilot survey: The term pilot survey is defined as the phenomenon that involves testing a particular questionnaire by using a small sample as compared to the already planned or organized sample size. While conducting a pilot survey, the questionnaire is being administered to a particular total percentage of a given sample population.
Advantage: A pilot survey provides important or valuable feedback to the experimenter or the researcher so that he or she can improvise the papers before getting it published.
In the question above, the given statement represents a pilot survey.
Chemical water/air affect human body health function.
Short-term exposure to some chemical pollutants can impair the immune, endocrine and reproductive systems. pollution may reason lesions, alter liver function or darken the skin. Chemical pollution may trigger asthma symptoms in those diagnosed with the disease. Exposure to excessive stages of air pollutants can purpose a spread of adverse health results. It increases the threat of breathing infections, heart ailment and lung cancer. both short and long term exposure to air pollution have been related to fitness impacts. More intense impacts affect people who are already unwell.
If drinking water carries dangerous levels of contaminants, it may motive fitness effects, along with gastrointestinal ailments, nervous system or reproductive outcomes, and continual sicknesses which include cancer. Many other materials may also be absorbed through the pores and skin in big quantities. These consist of mercury, isocyanates, polychlorinated biphenyls (PCBs), acrylates, and pharmaceutical products together with steroids and nicotine.
Learn more about chemical pollution here:-
brainly.com/question/17011368
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I believe the answer is: D. <span> Skinner; operant
According to skinner, operant conditioning refers to the attempt to make a subject to display desired beahvior by using rewards and punishment.
In the scenario above, completing the homework is the desired behavior and letting her choose the movie is the reward.</span>
rights unlisted in the Constitution
Answer:
a. of the letters the settlers wrote to relatives back in Spain.
Explanation:
San Antonio de Bexar was a historical fort that was built by the Spanish in what is now present-day San Antonio, Texas, US. This place became one of the earliest places of settlement in which the Spanish people came to enter into the American soil, through the process of assimilation and colonial settlement.
In<u> 1675, an expedition consisting of Fray Juan Larios, Fernando del Bosque, Fray Francisco Hidalgo, and Fray Antonio de Olivares </u>was sent by the Spanish crown to look into the possibility of establishing new settlements. It was through this expedition that led to the discovery of San Antonio. <u>Historians were able to learn about the intention of the explorers about making it a permanent settlement from the letters sent to relatives about the need to send more people to the settlement</u>.
Thus, the correct answer is option a.
