Researchers must utilize a control group in a scientific study because <span>it is important to show that between two groups that were similar from the beginning of the study, the one that received the manipulation is the one that changes. Note that the control group is the group in the experiment that does not receive manipulation by the experimenter and is thus used as basis for how the other test subjects changed. </span>
Answer:
No matter in what capacity you are writing a letter of advice, the burden lies on you, to give a positive response. Before responding to such a request you should think about it, but the letter should not be delayed. You should choose your words carefully, do not try to be judgmental. Make the person believe that you really care about him or her and the opinion you are giving is based on the sincerity. If you consider the topic sensitive, you should consider your approach carefully and avoid strong language. Its better to restrict your opinion, to the subject that has been asked do not add other aspects to it.
Answer:
Geography is divided into two main branches—physical and human geography.
Explanation:
Answer: The middle one is Provinces.
<span>Preschool programs are called “child centered” when they stress children’s development and growth. The “child centered” philosophy is also often called “play based.” Children in this type of program are allowed to choose to participate in activities that match their current interests, such as playing house or building with blocks. Teachers encourage the children to play, and through playing they learn important social skills.</span>
