Across
- 3. a big virus started in 2019
- 4. a country on the southern tip of Africa
- 6. the new variant of covid-19
- 8. a form or version of something
Down
- 1. the earth together with all of the countries
- 2. the changing of the structure of a gene
- 5. causing anxiety;worrying
- 7. a disorder or function in a person animal etc.