EARTH SCIENCE
OCEANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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El Nino appears every 2 to 12 years.
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Rain, flash-floods, and mudslides occur in places where there is usually little rain, while wet areas suffer from drought.
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Sometimes El Nino is followed by La Nina, during which ocean temperatures become cooler.
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Upwelling along the coast of South America occurs during El Nino.
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Detailed explanation-1: -Which statement describes the negative effects of El Niño? Rain, flash floods, and mudslides occur in places where there is usually little rain, while usually wet areas suffer from drought.
Detailed explanation-2: -Severe drought and associated food insecurity, flooding, rains, and temperature rises due to El Niño are causing a wide range of health problems, including disease outbreaks, malnutrition, heat stress and respiratory diseases.
Detailed explanation-3: -El Niño and La Niña affect not only ocean temperatures, but also how much it rains on land. Depending on which cycle occurs (and when), this can mean either droughts or flooding. Typically, El Niño and its warm waters are associated with drought, while La Niña is linked to increased flooding.
Detailed explanation-4: -El Niño causes the Pacific jet stream to move south and spread further east. During winter, this leads to wetter conditions than usual in the Southern U.S. and warmer and drier conditions in the North.