PK_VR specific terminology

2. To cause something or someone to move or change from one position or direction to another.
6. Not being or consisting of living material or containing no carbon or only small amounts of carbon.
7. A process, activity, or mechanism that binds greenhouse gases and aerosols from the atmosphere.
9. Any substance, usually in the form of a dry powder, that imparts colour to another substance or mixture.
11. Cloudy, opaque, or thick with suspended matter.
13. In the shape of a trapezoid, or having some faces which have one pair of parallel sides.
16. Caused by humans or their activities.
17. Cell or organism with one or more whip-like appendages.
19. The process of making something dilute.
21. Any substent that plants or animals need in order to live and grow.

1. Existing or coming before in time, order, or importance.
2. Saltiness or amount of salt dissolved in a body of water.
3. The action of one object coming forcibly into contact with another.
4. Allow a liquid, gas, or other substance to flow out from where it has been confined.
5. A naturally occurring material that is broken down by processes of weathering and erosion.
8. Very small plants that float near the surface of water and on which sea creatures feed.
10. A type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.
12. The act of making something, or of something becoming, smaller in size, amount, degree, importance, etc.
14. A place for storing liquid, especially a natural or artificial lake providing water for a city or other area.
15. Coming before a more important action or event, especially introducing or preparing for it.
18. When there is more than enough of something.
20. A unicellular eukaryotic alga characterized by the siliceous covering and symmetry.