This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 6 to 16 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
An element that combines with oxygen and hydrogen to form the organic compounds that make up organisms
The trapping of reflected heat from the sun by the Earth's atmosphere.
Burning of living things or fossil fuels that releases CO2 into the atmosphere
When animals consume other organisms with carbon (plants or animals) in order to grow and get energy
A type of consumer that feeds on dead plant or animal matter.
Carbon rich matter from plants and animals that has been trapped in the Earth's crust and can be burned to release energy
The breakdown of food with the release of energy and carbon dioxide.
Green plants that produce food by photosynthesis
Organisms that get their food from producers.
Molecule that contains Carbon