1. A. types B. kinds C. models D. both A & B
2. A. survival B. survive C. surviving D. survived
3. A. includes B. include C. contains D. contain
4. A. in B. into C. to D. from
5. A. prevents B. protects C. avoids D. hides
6. A. emissions B. emitted C. emission D. emitting
7. A. effect B. cause C. result D. consequence
8. A. causes B. leads to C. results in D. all are correct
9. A. brain B. mind C. head D. mental
10. A. told B. called C. said D. mentioned