Science

2. (of a liquid, gas, or electricity) move steadily and continuously in a current or stream.
6. the emission or transmission of energy in the form of waves or particles through space or through a material medium
9. a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities.
11. a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body
12. the layer of the earth's atmosphere above the troposphere, extending to about 50 km above the earth's surface (the lower boundary of the mesosphere).
16. the process by which dead organic substances are broken down into simpler organic or inorganic matter such as carbon dioxide, water, simple sugars and mineral salts.

1. a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapour, and gas are or have been erupted from the earth's crust.
3. a body of water or air moving in a definite direction, especially through a surrounding body of water or air in which there is less movement.
4. the action of one object coming forcibly into contact with another.
5. the region of the earth's atmosphere above the stratosphere and below the thermosphere, between about 50 and 80 km in altitude.
7. the lowest region of the atmosphere, extending from the earth's surface to a height of about 6–10 km (the lower boundary of the stratosphere).
8. the region of the atmosphere above the mesosphere and below the height at which the atmosphere ceases to have the properties of a continuous medium. The thermosphere is characterized throughout by an increase in temperature with height.
10. a chemical element with the symbol C and atomic number 6.
13. the outermost region of a planet's atmosphere.
14. matter that settles to the bottom of a liquid; dregs.
15. the visible shape or configuration of something.