Adrian Dela Cruz

5. Loss of water from the plant through evaporation at the leaf surface.
6. Enrichment of water by nutrient salts that causes structural changes to the ecosystem
8. Also known as the ecosphere
10. All the waters on the earth's surface
13. Two smaller molecules join to form a larger one
14. Small single-celled organisms
16. A processes during which ________ moves through both living and non-living things
18. Sometimes called the hydrologic cycle

1. Colorless gas with a density about 53% higher than that of dry air.
2. The earth itself
3. Water falls into the earth as liquid or frozen
4. Layer of gases, commonly known as air, retained by Earth's gravity,
7. Fuel formed by natural processes,
9. Water that turns into gas
11. When plants get energy from the sun
12. A process in living organisms involving the production of energy
13. Reusing ______ atoms that travel from the atmosphere into organisms and then back into the atmosphere repeatedly.
15. Movement of digested food molecules into the cells of the body where they are used.
17. A type of plant with seeds that grow in long cases