A) mountain
B) winter
C) prehistory
D) ice
Correct Option - D
ExplanationA glacier is a large mass of ice and cannot exist without it. A glacier can move down a mountain, but it can also move across a valley or a plain, which rules out choice a. Glaciers exist in all seasons, which rules out choice b. There are many glaciers in the world today, which rules out choice c.
A) love
B) church
C) ring
D) marriage
Correct Option - D
ExplanationA wedding results in a joining, or a marriage, so choice d is the essential element. Love (choice a) usually precedes a wedding, but it is not essential. A wedding may take place anywhere, so a church (choice b) is not required. A ring (choice c) is often used in a wedding, but it is not necessary.
A) map
B) route
C) travel
D) guidebook
Correct Option - B
ExplanationAn itinerary is a proposed route of a journey. A map (choice a) is not necessary to have a planned route. Travel (choice c) is usually the outcome of an itinerary, but not always. A guidebook (choice d) may be used to plan the journey but is not essential.
A) beach
B) cyclone
C) damage
D) wind
Correct Option - D
ExplanationA hurricane cannot exist without wind. A beach is not essential to a hurricane (choice a). A hurricane is a type of cyclone, which rules out (choice b). Not all hurricanes cause damage (choice c).
A) telephone
B) listing
C) computer
D) names
Correct Option - B
ExplanationA directory is a listing of names or things, so (choice b) is the essential element. A telephone (choice a) often has a directory associated with it, but it is not essential. A computer (choice c) uses a directory format to list files, but it is not required.Names (choice d) are often listed in a directory, but many other things are listed in directories, so this is not the essential element.
A) running
B) swimming
C) winning
D) speaking
Correct Option - C
ExplanationWithout a first-place win, there is no champion, so winning is essential. There may be champions in running, swimming, or speaking, but there are also champions in many other areas.
A) violin
B) stage
C) musician
D) soloist
Correct Option - C
ExplanationAn orchestra is a large group of musicians, so musicians are essential. Although many orchestras have violin sections, violins aren't essential to an orchestra (choice a). Neither a stage (choice b) nor a soloist (choice d) is necessary.