Answer: Observational Study
Explanation: An experiment requires a scientist to observe subjects of the study under specific conditions where an independent variable is involved and controlled by the scientist.
An observational study on the other hand is in an uncontrolled environment and the scientist does not have any control on the variables. An example is polls. The purpose of this type of study is to get statistical values without interfering with the the subjects of the study.
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Answer:
What are the 4 powers denied to Congress?
Explanation:
Today, there are four remaining relevant powers denied to Congress in the U.S. Constitution: the Writ of Habeas Corpus, Bills of Attainder and Ex Post Facto Laws, Export Taxes and the Port Preference Clause.
Answer:
C
Explanation:
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Sydney is in Piaget's<u> "concrete operational" </u>stage of development.
As the name suggests, the concrete operational stage of development can be characterized as the phase of cognitive development in which a child is equipped for playing out an assortment of mental activities and considerations utilizing solid ideas. All the more particularly, kids can comprehend that in light of the fact that a question changes shape or is isolated into pieces, the protest still holds certain critical attributes, for example, mass or volume.
