Plants
Different plant species are necessary in each of four depth-zones.
- 0–20 centimetres (0–7.9 in)
- 40–60 centimetres (16–24 in)
- 60–120 centimetres (24–47 in)
- Greater than 120 centimeters (47 in)
Read more about this topic: Organisms Used In Water Purification
Famous quotes containing the word plants:
“From the time the Englishman’s bones harden into bones at all, he makes his skeleton a flagstaff, and he early plants his feet like one who is to walk the world and the decks of all the seas.”
—Willa Cather (1876–1947)
“So neither the one who plants nor the one who waters is anything, but only God who gives the growth. The one who plants and the one who waters have a common purpose, and each will receive wages according to the labor of each. For we are God’s servants, working together; you are God’s field, God’s building.”
—Bible: New Testament, 1 Corinthians 3:7-9.
“Luxurious Man, to bring his Vice in use,
Did after him the World seduce:
And from the fields the Flow’rs and Plants allure,”
—Andrew Marvell (1621–1678)