Quick Answer. It takes between 10 to 12 minutes to completely melt an ice cube on concrete with an ambient temperature of 109 degrees Fahrenheit. Ice melts at different speeds based on a range of factors such as the temperature of the ice, the size of the ice and the ambient temperature. Continue Reading.
Report Abuse. Most bacteria are not producers, they are consumers. Most bacteria are decomposers, though some are parasites. The bacteria that are called cyanobacteria are producers that use photosynthesis. There are also some bacteria that live near deep sea volcanic vents and produce their own food using chemicals for energy.
Though some bacterias cause disease and illness in humans, the majority are harmless. Some bacterias are used to aid digestion, used in preparation of certain foods, used to battle infections or used by industry. Bacteria in the intestinal tract helps the body to digest food. The production of several foods, such as cheeses, sausage and sauerkraut, depend upon bacteria or fermenting bacteria in order to reach their finished states. Harmless bacteria is used to treat some bacterial infections in the human body by interfering with the colonization of the harmful bacteria. Hydrocarbon-oxidizing bacterias aid in the decomposition of petroleum, and they are used by industry when cleaning oil spills.