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Drought can change the actual landscape of the Earth. A prolonged period of dry weather, not even necessarily hot, produces changes in the earth such as: * increased desertification (formation of desert lands) * reduction and degradation of animal and plant habitats * reduction of animal and plant species, having an overall effect on the food chain and predation among the species * wind erosion of soils and loss of topsoils * dust storms and sandstorms, which take tonnes of dust and sand and dump them elsewhere * increased bushfires and wildfires, both in number and severity
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What are the main causes for drought?
The main causes of drought are lack of precipitation, high temperatures leading to evaporation, and changes in weather patterns such as El Niño. Human activities like deforestation, over-extraction of water, and climate change can also exacerbate drought conditions.
Why does earth crack in drought?
During a drought, the lack of water causes the soil to dry out and shrink. This can lead to cracks forming in the ground as the soil contracts. The cracks allow the earth to separate, creating visible fissures on the surface.
How long was the longest drought in history and where did it happen?
The world's longest drought lasted 400 years from 1571 until 1971 in the Atacama Desert of Chile, the driest place on Earth.
What is a long period of no rain called?
A long period of no rain is called a drought.
What causes the drought cycles in Africa?
Quickly evaporating rainwater causes most of the drought cycles
Is a drought a chemical or a physical change?
Drought is not a change, is the result of a physical process.
What is the result to a change in the environment?
global warming>>>drought, extinction
What is an event that can change the amount of resources in the savanna?
A fire or drought.
What are the main reasons for the collapse of the Maya?
drought do to climate change
Which change is an environmental effect of building dams?
flooding
What would happen to the Earth's atmosphere if the Earth's surface temperature increased to that of Mercury's highest temperature?
major climatic change where part of the earth would suffer immense drought while parts would be flooded because the evaporated water would not leave the planet
Does earth have an endless supply of water?
No because people are dying of drought and of thirst
What is destroying cacao trees?
Deforestation, climate change, insects, drought.
What is the longest drought in US history?
The world's longest drought lasted 400 years from 1571 until 1971 in the Atacama Desert of Chile, the driest place on Earth.
What happens when a ecosystem has a drought?
When an ecosystem has a drought, it makes it hard for any living thing to adapt to the new change in climate. It usually kills a drastically large amount of animals and plants, because sometimes living things aren't smart enough to quickly change their lives in order to survive the drought.
What percentage of countries suffer from drought?
Approximately 14% of countries worldwide are affected by drought, with regions such as the Middle East, Africa, and Australia experiencing higher levels of drought vulnerability. Climate change is expected to exacerbate this issue in the coming years.
When does drought happen in Antarctica?
Antarctica is the driest continent on earth -- a polar desert. It is always arid.
