Answer Field experiments can better replicate natural conditions
Explanation: Field experiment s are those experiments that take place in the everyday life. The individual performing the experiment gets to control and operate the independent components but not the dependent components.They have the tendency to copy the natural field due to presence of real-life setting.
Other options are incorrect because lab experiments are easier to perform as compared with field experiments and lab experiments display the quality of accuracy to determine connection between external and internal components.
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.
Answer: A
Explanation:
Native Americans, life was very difficult on the journey west.
Everyone would go back to their state of nature