Solve these clues to fill the grid.
- The act of getting ___
- 5 Across
- Undesirable state of the natural environment being contaminated with harmful substances as
- 6 Across
- Photosynthetic or plant constituent of plankton
- 7 Across
- The movement of persons from one country or locality to another
- 8 Across
- Any substance that can be taken in by a green plant and used in organic synthesis (plural)
- 9 Across
- An illness that harms the body
- 1 Down
- The gathering of a ripened crop
- 2 Down
- The quality or state of being ___
- 3 Down
- The process of generating offspring
- 4 Down