Drought is hard to detect and cannot be prevented. It is different from other natural hazards, such as typhoons, hurricanes and tornadoes. The impacts of drought can be mitigated through careful planning and management process before or at the onset of the drought.Know More
Water conservation is one of the easiest ways to mitigate the impacts of drought. Simple everyday tasks, such as turning off the water while brushing teeth or using a glass to rinse afterwards, can help save gallons of water in a month.
On a larger scale, many businesses and cities use gray water to water larger land areas, such as parks and golf courses. Gray water is used water that is treated and cleaned.Learn more about Environmental Science
Put simply, droughts are caused by a prolonged depletion of precipitation in a certain ecosystem or climate over a long period of time. Unlike normal dry spells, droughts are so severe that they can thoroughly dry out vast expanses of land, like deserts. Droughts can be extraordinarily damaging and expensive to the people who live in the environments where they occur, especially in terms of the agricultural industry.Full Answer >
According to About.com, there are many causes for drought, but the most important one "relates to the amount of water vapor in the atmosphere, as this is what creates precipitation." Moist, low pressure systems tend to bring more rain, snow, sleet and hail, while dry high pressure systems lead to a lack of precipitation.Full Answer >
Because they are caused by a reduction in the normal amount of rainfall a region receives, droughts can occur anywhere on the planet. For example, some parts of the Amazon River basin were struck by drought in 2005. However, some places do are more susceptible to droughts than others, such as California, the southeastern United States, sub-Saharan Africa and Australia, which have all experienced numerous droughts.Full Answer >
Chemists Carl Scheele and Joseph Priestley, working in 1772 and 1774 respectively, heated several compound gases, releasing one that optimized combustion, as shown by the brightness of a test candle flame. Chemist Antoine Lavoisier, performing similar tests, found that air is about one-fifth oxygen. Lavoisier gave oxygen its name.Full Answer >