18. Survival: My cousin is an expert in survival in nature.
2. I like to watch survival programs on TV.
7. Environment: We must take care of the environment.
2. Pollution damages the environment.
9. Evolution: Charles Darwin came up with the theory of evolution.
2. The theory of evolution explains how species change over a period of time.
19. Variation: Animals have many variations over time.
2. Climate variation in my country is normal.
2. Adaptation: My adaptation process at school was excellent.
2. The engine of my father's vehicle need an adaptation to go faster.
11. Fossil: Paleontologists found a very big fossil.
2. A fossil is the remains or trace of an ancient living thing.
16. Natural: The flowers my mom gave me are natural.
2. The whirlpool is a very natural phenomenon.
8. Evolve: Technology must evolve to adapt to human needs.
2. A species evolves as it adapts to changing conditions in the environment.
17. Survive: Mateo managed to survive in the jungle for a week.
2. Dinosaurs didn't survive the impact of a huge meteorite millions of years ago.
6. Diversity: We must respect the diversity of cultures.
2. Guatemala has a great diversity of flora and fauna.
14. Habitat: There are many types of habitats in the world.
2. Animals live safely in their habitat.
20. Variety: Salads have a variety vegetables.
2. In the museum we find a variety of fossils.
4. Development: The development of my country is very high.
2. Good nutrition is the key to a child's development.
5. Diversify: Gabriel wants to diversify his food.
2. My uncle wants to diversify the company in two new areas.
10. Extinct: Dinosaurs became extinct millions of years ago.
2. The Irish moose is an extinct animal.
1. Adapt: We need to adapt to rules of the school.
2. I need to adapt to my new job.
13. Fossilization: Fossilization takes thousands or millions of years.
2. Paleontology studies fossilization.
3. Develop: I need to develop a new videogame.
2. My mom wants to develop a more advanced computer program.
12. Fossilize: Organisms with soft bodies don't usually fossilize.
2. Mammoths fossilized millions of years ago.
15. Mutate: Animals have mutated over time.
2. The protagonist of the film mutated into a giant insect.