Answer:
A river is the work of nature, and a canal is a channel for water made by men.
Explanation:
Canals, or water-channels, have been made by men for two different purposes. Yet there is plenty of water, which runs away in the rivers uselessly to the sea.
The years 1865-1877 was the so-called Reconstruction Era. The Reason for this reconstruction was the devastation of the country during the Civil War.
Additionally, the South had to be transformed from the point of view of the North: with slavery abolished, many social changes had to be introduced - this was the other reason for Reconstruction.
Answer: test had less than perfect reliability
Explanation: The test score used by the college to predict how a student will perform could be said to have less than perfect reliability. This proved to be the case due to the students actual performance when later admitted based on intervention. It shows that the test score can not consistently serve as proof that only students who have above the cut off mark will be good performers in the college. Therefore, it could be concluded that the test score had less than perfect reliability based on the the eventual performance of the student.
Movement is a piece that sounds fairly complete and independent but is part of a larger composition
I believe the answer is Shaping.
Shaping is a reinforcement technique which use a reward that given gradually after the subject is showing a certain desired traits.
On parakeets, this could be done by giving them a food reward everytime they move their head closer to the place where we want it to be (closer to your cheek)
