(Hypothetical) In order to assess the effectiveness of a new fertilizer, researchers applied the fertilizer to the tomato plants
on the west side of a garden but did not fertilize the plants on the east side of the garden. They later measured the weights of the tomatoes produced by each plant and found that the fertilized plants grew larger tomatoes than did the nonfertilized plants. They concluded that the fertilizer works. (a) Was this an experiment or an observational study
Explanation: An experiment can be defined as an examination under inhibited conditions made to examine the validity of a hypothesis, demonstrate a known truth, or determine the efficacy of something that has not been tried before.
In this question, the researchers applied the fertilizer to some parts while they didn't apply to some other parts. This act, is a quality of an experiment in the sense that the test was done under inhibited conditions. If the fertilizer was applied everywhere, it can be an observational study.
Explanation: Experiment is done when we apply anything to a samples or conditions in other to study another sample or conditions.
Observation is done when, we study samples or conditions in it's natural way, without application of anything that may alter it's result.
Because the researcher has applied fertilizer to one side and did not apply to the other side, that means he has performed an experiment. Since he wasn't observing the two sample in it's natural way without any external application.
The enumerated powers (also called expressed powers, explicit powers or delegated powers) of the United States Congress are listed in Article I, Section 8 of the United States Constitution. In summary, Congress may exercise the powers that the Constitution grants it, subject to the individual rights listed in the Bill of Rights.
Given That the nineteenth century was the century of socialism of liberaism and of democracy it does not necessarily follow that the twentieth century must also be a century socialism
The one that is a utilitarian argument in favor the park is : C. the park will provide children a nice play to run and play In utilitarian argument, the argument will be emphasized on its practicality rather than esthetic or feelings
