(Q).
Q: How many stars are in our solar system?   Read this paragraph and choose the correct option from the provided answers:  Our solar system has only one star. But many stars are in systems of two or more stars. Two stars that orbit each other are called a binary star system . If more than two stars orbit each other, it is called a multiple star system. Figure below shows two binary star systems orbiting each other. This creates an unusual quadruple star system.   Choices:  - two  - none  - three  - one   A:
(A).
one


(Q).
Q: How many bones does the  mammalian middle ear have?   Read this paragraph and choose the correct option from the provided answers:  The mammalian middle ear has three tiny bones that carry sound vibrations from the outer to inner ear. The bones give mammals exceptionally good hearing. In other vertebrates, the three bones are part of the jaw and not involved in hearing.   Choices:  - two  - twelve  - four  - three   A:
(A).
three


(Q).
Q: What is the most important way that humans communicate?   Read this paragraph and choose the correct option from the provided answers:  The most important way that humans communicate is with language. Language is the use of symbols to communicate. In human languages, the symbols are words. Words may stand for things, people, actions, feelings, or ideas. By combining words in sentences, language can be used to express very complex thoughts.   Choices:  - inheritance  - painting  - instinct  - language   A:
(A).

language