Nature and Science Mix

Across

1. Gradually wear away or diminish

2. Reproductive unit of fungi and plants

5. Without any stopping point or limit

6. Frozen sphere rolled by children outdoors

7. Study of interactions between organisms

10. Picturesque and visually attractive view

12. Slow movement carried by current

13. Measurement of fabric length

Down

3. Power or vitality needed for action

4. Assortment or range of different types

8. Variant form of a gene segment

9. Metal blend often used in jewelry

11. Blue gray metal used in alloys