coarser adj. comparative not in very small pieces filter n. something that is used to remove pieces or dirt from a liquid fine adj. in very small pieces identify v. indicate what something is lift v. to move upwards seeds n. plural a small piece from which a flowering plant grows solution n. the answer of how to solve a problem sprout v. start to grow Unit 3 Unit 4 addicted v. past participle keep on doing something even if you know it is bad for you affected v. past participle make a change happen in something or someone experts n. plural someone who knows a lot about a topic host n. a person or country who invites other people to come and visit
and stay pollution n. damage caused to the environment or nature post v. to share information with others on a website scientists n. plural someone who works in and studies science truth n. real and true things
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