Write a predicate in that determines which doll is (directly or indirectly) contained in which other doll. e. g., the query in(katarina, natasha) should evaluate to true, while in(olga, katarina) would evaluate to false. note: you may find useful also writing an additional predicate to solve this problem.

Acetylene is a gas which burns rapidly on its own, and is considered highly explosive. a) true b) false

Create a class named majors that includes an enumeration for the six majors offered by a college as follows: acc, chem, cis, eng, his, phys. display the enumeration values for the user, then prompt the user to enter a major. display the college division in which the major falls. acc and cis are in the business division, chem and phys are in the science division, and eng and his are in the humanities division. save the file as majors.java.

Which statement is true of web-based social media? a.they allow consumers to interact with and update content. b.they cannot be updated easily, as compared to print media. c.they are expensive to produce and maintain, as compared to print and television. d.they can exist independent of the internet.