Answer:
d) the group that is subjected to the change that the independent variable represents.
Explanation:
Experimental group: The experimental group is also referred to as a treatment group because this is the group that receives treatment in a given experiment. Here, the group refers to test subjects like animals, people, plants, etc. In the experimental group, the independent variable is being changed.
In an experimental research study, the group which is an experimental group is the group that is subjected to the change that the independent variable represents.
The answer to the question is C
Answer:
poor colonists moved inland to find good farmland.
Explanation:
Answer:
Doppler Effect
Explanation:
Doppler Effect is a term in Physics that describes the phenomenon experienced when there is change in wave frequency during the relative motion between a wave source and its observer.
In other words, it is referred to as increase or decrease in the level of sound, or other waves as the distance between source and observer is closer or farther from each other, such that it causes change in pitch, which is noticeable by the observer.
For example, when a sound object moves towards an individual or observer, the frequency of the sound waves increases, leading to a higher pitch, and at the same time, when the sound object moves away from an individual or observer, the frequency of the sound waves decreases, leading to a lower pitch. E.g passing siren from ambulance.
Hence, in this case, the right answer is DOPPLER EFFECT
