Me. But I don't know how to go into the link.
Answer:
Randomized
Explanation:
Observational Studies and Randomized Trials are two ideal ways of determining the outcome of certain tests.
In the Observational course the study is conducted in a true to life scenario and the result of what happens is recorded. Meanwhile, in the Randomized Trial there purposefully placed conditions that are ideal and these are evaluated after specific interventions.
Since the pool manager did not let different pools grow algae at will before putting in the chemical this study would not be considered observational. Instead he set up three different pools of the same size with the similar amount of contaminants and then tested the algaecide. This classifies this as a Randomized Trial.
Claims and support are related because claims are statements that are made by authors in relation to some subject matter that are backed up by "support" or evidence. Therefore, based upon these options, "An author will use support to back up a claim." This claim and support are what authors use to create arguments in writing to make a point and to express a perspective on a particular issue.
I would say the setting Hawthorn choose for his book to take place, this Puritan village
I mean idk if this is the right answer bc it seems too obvious but a flower?