Iodine solution is used to test leaves for the presence of starch. You need to: heat a plant leaf in boiling water for 30 seconds (this stops its chemical reactions) heat it in boiling ethanol for a few minutes (this removes most of its colour)
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Heat waves, floods, storms, fires, and droughts will increase the number of deaths, cases of disease, and injuries. Increased malnutrition, diarrheal disease, and malaria in some areas will jeopardize public health. Development goals will be threatened by longer-term damage to health systems from disasters
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