Answer:
Observational study
Explanation:
An observational study is a type of study in which individuals are observed and certain measures are measured but there's no intend to affect the actual outcome. In other words, no treatment is given to the individuals and there's no intervention done by the researcher.
In this example, the study aims to evaluate the percent of adults whose right cerebral hemisphere is larger than the right hemisphere. 20 people come and have their brains scanned. Then, the scan is analyzed to identify which hemisphere is larger.
In this study, we can see how <u>individual's brains were observed and some measures were taken but there was no treatment given to them</u> (the researchers were only interested in knowing which hemisphere was bigger).
Thus, this is an example of observational study.
Answer:
The specific reasons are below
Explanation:
1) loud music on the street distracts the local bus drivers which will lead to accidents.
2) The blind people also lose their concentration while crossing zebra lines
3) the small kids mentally always in their own world get distracted and make big blunders and may fall in potholes.
Now, the reasons why we can't let our pet to other rooms:
1) pets are very sensitive by nature, thus any change in their usual surrounding may disturb their usually cool nature.
2) pets usually can't trust each and everybody,due to their sharp instincts, so they can never mingle with other people immediately.
3) the other reason is they don't intake food or water from strangers.
4) Also the skin of the pets are very fragile, thus letting them out to other rooms may cause them various types of bacterial and viral infections.
Something covered by land and no coastline.
