Twain loved the paddlewheel steamboat and he loved the river. As a matter of fact, it was during his years on the river that he chose his pen name. Mark Twain was a frequent call of the leadsman. It meant that the water was 2 fathoms (12 feet) deep and indicated safe water. A leadline is used to determine water depth and the type of material which makes up the bottom or riverbed. A 30-foot-long line is attached to a pipe filled with lead, except for the bottom 2 inches.
1. Horticulture is a branch of plant agriculture and is both a science and an art. As an art, it incorporates the principles of design (as in landscaping). 2. Horticulture deals with intensively cultured and high-value crops.
Monoculture: The cultivation of a single crop in a given area â WordNet The use of land for growing only one type of crop â Dictionary.com The cultivation or growth of a single crop or organism especially on agricultural or forest land â Merriam Webster.onoculture â growing vast fields of the same crop year after year â is probably the single most powerful simplification of modern agriculture. But monoculture is poorly fitted to the way nature seems to work.