Answer: This is a "CONTROLLED PLACEBO EXPERIMENT".
Explanation: A controlled placebo experiment is a type of research method that is used to check the effectiveness of a drug in a patient. This is done by selecting a sample group, then randomly divide the two group into a placebo group ( this are the group that will receive the drug treatment ) and the controlled group( these are the group that will receive a coloured mixture that looks like the drug, but does not have any effect). Without the groups knowledge about the real drugs and the coloured mixture, but are followed up and tested.
This is a controlled placebo experiment, because 400 student has been choosed as the sample, and are divided into a placebo group and a controlled group, to check the effectiveness of a drug on their memory.
Answer:
The answer is below
Explanation:
With the historical thinking skills such as Crafting historical arguments from historical evidence, one will be able to formulate questions clearly and support it with historical evidence. Then using Chronological reasoning, one will be able to identify and analyze historical causes, evidence, and time to build an argument.
Also, using Comparison and contextualization, one will be able to compare historical evidence and connects it to other related issues. Then finally, with Historical interpretation and synthesis, one will be able to interpret this historical evidence from various sources it was derived.
The land between those two Rivers is called "the fertile crescent" so it's pretty self explanatory. It Was fertile land. Good for farming building houses on ect
Answer:
C
Explanation:
The revolving turret enabled them to be able to shoot in any direction "On Jan. 30, 1862, the USS Monitor was launched. It was the first of its kind in the navy- an ironclad warship with a rotating turret. "(http://thecaptainslog.org/2019/02/03/this-day-in-history-cheesebox-on-a-raft/).
“A suburb (or suburban area or suburbia) is a commercial, mixed-use or residential area. It can exist either as part of a city/urban area and can often have a large degree of employment. In some metropolitan areas they exist as separate residential communities within commuting distance of a city.”