<u>Answer:
</u>
The study carried out by Dr. Xu is a randomized controlled study.
<u>Explanation:</u>
- For the sake of determination of how the results of the students change by doing certain changes to the examination pattern, Dr. Xu devised that the change is considerably evident.
- Dr. Xu provided and intervention in the process of exam in the form of guides which helped the students to score better later. Hence, from the standard of conduct of the study, it can be said to be a randomized controlled study.
Answer:
B.R. Ambedkar
Explanation:
Bhimrao Ramji Ambedkar, the father of the Indian Constitution, was a harsh critic of Congress and its members, especially Mahatma Gandhi and Congress leaders whom he held accountable for the bad treatment that the Dalits were given in India. To B.R. Ambedkar was against the patronizing approach of Mahatma Gandhi toward the Dalits. He even wrote the book to openly criticize them in 1945. The reservation od the Schedule caste and scheduled tribe in the elections was the fruit of his hard work.
The best that describes the B section is:
- It makes a shift to a minor tonality.
Let's understand what a tonality is all about.
<h3>Tonality </h3>
- Tonality, in music refers to the principle of actually organising musical compositions.
- The arrangement is done around the central note, the tonic.
<h3>George Handel</h3>
- George Handel was known to be a German-British Baroque composer.
- He was known for his anthems, operas, oratorios, organ concertos, e.t.c.
- He had influences from middle-German polyphonic choral tradition and from Italian Baroque.
Learn more about Handel on brainly.com/question/1082978