| A | B |
|---|
| atmosphere | a layer of gases the surround the Earth |
| cycle | a series of events that happens over and over again |
| uneven | not straight or regular |
| collision | the act of crashing against each other |
| injured | harmed or damaged |
| data | individual fact, figures and other items of information |
| tortillas | round flat bread made from cornmeal |
| heritage | handed down from an early generation |
| thrive | to be successful or to do well |
| survival | the act of continuing to exist |
