A household furnace is a major appliance that is permanently installed to provide heat to an interior space through intermediary fluid movement, which may be air, steam, or hot water.n industrial furnace or direct fired heater, is an equipment used to provide heat for a process or can serve as reactor which provides heats of reaction. Furnace designs vary as to its function, heating duty, type of fuel and method of introducing combustion air.
Need for Water Like all living things, plants need water to survive. Plants use water to maintain their shape, obtain energy through photosynthesis, collect dissolved nutrients from the soil, transfer small molecules throughout the plant, and cool off leaves in hot weather through evaporation. Because they need so much water, plants must have an efficient system to collect it. Roots. Plants obtain water through the soil. The roots are the transportation system to get the water from the soil and to the parts of the plant where it is needed. The roots branch off into smaller and smaller roots, and the smallest roots are called root hairs.
Plants need water in order to dissolve the nutrients that are carried by the roots from the soil. Just like humans, plant also eats but their process is different. They get nutrients from the soil surrounding the root system.