When raising aquatic plants in outdoor ponds, it is important to consider the amount of light available, the depth of the pond, the kind of soil, and various other factors. Since most aquatic plants obtain nourishment from the soil, it is necessary to have a soil rich in organic matter. In most natural ponds the accumulation of humus at the bottom is excellent for plant growth. In some ponds, however, the bottom consists largely of sand or gravel that must be covered with a thick layer of rich soil. If the pond is very large, it is often easier to root the plants in earth-filled boxes or pots than to place a thick layer of soil over the entire bottom of the pond. Most aquatic plants require large amounts of light and should not be grown in shaded areas. In some regions, it is also important to protect the plants from strong winds by growing shrubbery or other windbreaks near the edge of the pond. The depth of the water should be determined by the size of the plants. In many cases,...
Samples collected by UN experts in Syria on suspected sites of chemical attack will be sent on Monday to competent laboratories. The first results could be published in at least two weeks. Various laboratories around the world to analyze the evidence gathered by UN investigators on the use of chemical weapons in Syria during the attack of 21 August, in Ghouta, east of Damascus, will receive samples from Monday. "The samples should be sent to a half-dozen laboratories around the world, in countries that are not politically involved," and told AFP, Michael Luhan, a spokesman for the Organization for prohibition of Chemical weapons (OPCW), after receiving Saturday levies investigators in The Hague, the Netherlands . According to the OPCW, the analysis should determine if chemical weapons have been used and which are not used , could take three weeks. Secretary General Ban Ki-moon would however asked the chief experts Aake Sellström to accelerate the analysis of samples and infor...
When Madonna's first recordings were released, some rock critics wrote that her voice was thin and colorless. And many people complained that her songs and videos were demeaning to women. But Madonna didn't let criticism stop her. She became one of pop music's biggest stars. And she has used her musical success to branch out into other fields. Over the course of her career, Madonna has spent time as an actress, a record and film producer, and an author of children's books. Madonna Louise Veronica Ciccone was born in Bay City, Michigan, in 1958. She began her career in 1978 as a dancer in New York City. She later appeared with various groups as a drummer and singer, and then formed her own band. Her first album, Madonna , was released in 1983, and the single "Borderline" was her first Top 10 hit. But it was her second album, Like a Virgin (1984), featuring "Material Girl," that made Madonna a superstar. Touring the country, she attract...