How do you say thank you in Chinese, Russian, and Indian

Which of the following is an essential element of a strong informative/explanatory text? a. it expresses an opinion on a topic. b. it has a clear organizational structure. c. it uses text features, such as headings. d. it includes graphic elements, such as images.

Missense, nonsense, and silent mutations are examples of which type of mutation?

Lisha’s teacher usually includes lots of comments on student tests to them understand why their answers were incorrect.