Across
- 2. lens forms real and inverted image
- 6. soil used to make pots, toys and statues
- 7. treated in a sewage treatment plan
- 10. turns blue litmus red
- 11. develops into an embryo.
- 14. fusion of male and female gametes
- 15. In plants asexual and sexual are modes of
Down
- 1. rearing of silkworms for obtaining silk
- 3. rotting dead matter in the soil
- 4. Dried sludge is used as
- 5. distance covered by an object in unit time
- 8. Slimy green patches in ponds
- 9. Acid found in Citrus fruits like oranges
- 12. exists in 3 forms solid, liquid and vapour
- 13. light is composed of seven colours