Across
- 2. a great number of things or people
- 5. a wealthy person who gives money and time to help make life better for other people
- 6. to increase greatly in number or amount; to become much more numerous
- 8. capable of being slowly destroyed and broken down into very small parts by natural processes, bacteria, etc.
- 9. the act of saying or singing something together at the same time
Down
- 1. a science that deals with things that are alive, such as plants and animals;the study of life
- 3. special or unusual
- 4. a state or situation in which you are alone,
- 5. a tiny particle of light or electromagnetic radiation
- 7. a two-dimensional shape that has three or more straight sides and angles