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Vocabulary Preview

A Choose the correct word for each definition.

reason history explorer ancient chemical
harmful environment edge flat journey

1. explorer : n. a person who explores unknown or little-known places
2. flat : n. having a smooth, even surface
3. harmful : a. causing or able to cause harm
4. edge : n. the line or point where an object or area ends
5. history : n. the continuing events of the past leading up to the present
6. journey : n. travel from one place to another
7. chemical : n. a substance that is used in a chemical process
8. ancient : a. belonging to the distant past
9. reason : n. a cause for acting, thinking, or feeling in a certain way
10. environment : n. circumstances, people, and events that influence their life

B Match each of the vocabulary words with the correct synonym.

Vocabulary Word Synonym

1. discuss • • a. adapt, change, modify

2. protect • • b. chat, converse, speak

3. adjust • • c. difficulty, harm, burden

4. spread • • d. preserve, save, defend

5. hardship • • e. enlarge, expand, stretch

Unit 2 Geography 99