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What weather dose chad get?
Chad experiences a hot and dry desert climate in the north, transitioning to a tropical climate in the south. During the dry season (November to March) temperatures can reach as high as 40°C, while the wet season (June to September) brings some relief with cooler temperatures and occasional thunderstorms.
How did Andreas Marggraf discover zinc?
Andreas Marggraf discovered zinc in 1746 through the process of isolating the metal from calamine ore. He was able to separate zinc oxide from the ore and reduce it to its metallic form by heating with carbon. Marggraf's work was a key development in the understanding and production of zinc.
What advantages of using scrap iron to extract copper from a copper salt?
Using scrap iron to extract copper from a copper salt solution is cost-effective because iron is cheaper and more readily available than other reductants. Additionally, scrap iron helps in the reduction of copper ions to copper metal due to its high reactivity, making the extraction process efficient.
What type of scientist was Alfred Wegener?
Alfred Wegener was a meteorologist and geophysicist known for proposing the theory of continental drift, which later developed into the theory of plate tectonics. He studied the Earth's climate history and the movements of continents over time.
How much sodium should a 12 year old boy get in a day?
A 12 year old boy should aim to consume no more than 1,500-2,300 milligrams of sodium per day, depending on their individual health needs. It's important to limit sodium intake to promote heart health and prevent issues like high blood pressure in the future. Consulting with a healthcare provider or a registered dietitian can help determine the appropriate sodium intake for a specific individual.
