Essential Part

1. Choose the word that is a necessary part of the underlined word.
harvest

Option”D” is correct

To harvest something, one must have a crop, which is the essential element for this item. Autumn (choice a) is not the only time crops are harvested. There may not be enough of a crop to stockpile (choice b), and you can harvest crops without a tractor (choice c).

2. Choose the word that is a necessary part of the underlined word.
desert

Option”B” is correct

A desert is an arid tract of land. Not all deserts are flat (choice d). Not all deserts have cacti or oases (choices a and c).

3. Choose the word that is a necessary part of the underlined word.
book

Option”B” is correct

The necessary part of a book is its pages; there is no book without pages. Not all books are fiction (choice a), and not all books have pictures (choice c). Learning (choice d) may or may not take place with a book

4. Choose the word that is a necessary part of the underlined word.
language

Option”D” is correct

Words are a necessary part of language. Slang is not necessary to language (choice b). Not all languages are written (choice c). Not all languages are spoken (choice a).

5. Choose the word that is a necessary part of the underlined word.
school

Option”A” is correct

Without students, a school cannot exist; therefore, students are the essential part of schools. The other choices may be related, but they are not essential.

6. Choose the word that is a necessary part of the underlined word.
shoe

Option”A” is correct

All shoes have a sole of some sort.Not all shoes are made of leather (choice b); nor do they all have laces (choice c).Walking (choice d) is not essential to a shoe.

7. Choose the word that is a necessary part of the underlined word.
swimming

Option”C” is correct

Water is essential for swimming-without water, there is no swimming. The other choices are things that may or may not be present.

8. Choose the word that is a necessary part of the underlined word.
lightning

Option”A” is correct

Lightning is produced from a discharge of electricity, so electricity is essential. Thunder and rain are not essential to the production of lightning (choices b and d). Brightness may be a byproduct of lightning, but it is not essential (choice c).

9. Choose the word that is a necessary part of the underlined word.
ovation

Option”C” is correct

An ovation is prolonged, enthusiastic applause, so applause is necessary to an ovation. An outburst (choice a) may take place during an ovation; “bravo” (choice b) may or may not be uttered; and an encore (choice d) would take place after an ovation.

10. Choose the word that is a necessary part of the underlined word.
vertebrate

Option”A” is correct

All vertebrates have a backbone. Reptiles (choice b) are vertebrates, but so are many other animals. Mammals (choice c) are vertebrates, but so are birds and reptiles. All vertebrates (choice d) are animals, but not all animals are vertebrates.