How did the inca make such precise calculations in astronomy, architectural engineering, and mathematics?

In marigolds, which character can be described as having a laugh so loud that the great oak seemed to laugh with it?

1.which of the following is an example of a secondary source? a. a biography of stephen king b. an interview with stephen king c. a novel by stephen king d. stephen king's letters to his editor 2.why should academic writers use the third-person point of view for a research paper? a. when using it, you can easily switch to a different point of view. b. it keeps your writing simple. c. it limits your credibility. d. it allows you to be more objective in your writing. 3.the author of a source may be considered reliable if he or she a. includes opposing views. b. omits information that doesn't fit his or her opinion. c. bends facts to make a point. d. summarizes facts without attribution or citation. 4 which of the following should you take into consideration when determining if an author is biased? a. your age as a reader b. the descriptive and connotative language used in the writing c. your existing personal biases d. the intended audience for the essay

Wich statements best identifies a problem with this method