âºâº Definition: Kilometer. A kilometre (American spelling: kilometer, symbol: km) is a unit of length equal to 1000 metres (from the Greek words khilia = thousand and metro = count/measure). It is approximately equal to 0.621 miles, 1094 yards or 3281 feet.ou can view more details on each measurement unit: km or feet. The SI base unit for length is the metre. 1 metre is equal to 0.001 km, or 3.28083989501 feet. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between kilometres and feet.
Fungus gnats are common indoor pests. Adult gnats are about â long, grayish to black in color, with long legs, antennae and one pair of wings. The adults do little plant damage, but can be unpleasant if they are present indoors in large numbers. The larvae live in the soil and chew on plant roots.
In fact, some adult gnats donât even eat during their short lifespan. Gnat larva, which hatch from eggs laid in moist soil and other wet environments, feast on fungus, algae or plants. Besides humidity, a gnatâs life cycle also depends on temperature. Take fungus gnats , for example. The fungus gnat â a common indoor pest that thrives in the overwatered soil of potted plants or greenhouses â lives out its life cycle in three to four weeks at temperatures of 77 degrees Fahrenheit or higher.