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Bookmark or Share- The Origins of Covid-19 — Why It Matters (and Why It Doesn’t)When health emergencies arise, scientists seek to discover the cause — such as how a pathogen emerged and spread — because this knowledge can enhance our understanding of risks and strategies for...
- Coronavirus disease (COVID-19) - World Health Organization (WHO)COVID-19 is a disease caused by a virus. The most common symptoms are fever, chills, and sore throat, but there are a range of others. Most people make a full recovery without needing hospital treatment. People with severe symptoms should seek medical care as soon as possible.
- The Causes of Climate Change - Science@NASAMethane comes from plant-matter breakdown in wetlands and is also released from landfills and rice farming. Livestock animals emit methane from their digestion and manure. Leaks from fossil fuel production and transportation are another major source of methane, and natural gas is 70% to 90% methane.
- Cancer - Symptoms and causes - Mayo ClinicCauses. Cancer is caused by changes (mutations) to the DNA within cells. The DNA inside a cell is packaged into a large number of individual genes, each of which contains a set of instructions telling the cell what functions to perform, as well as how to grow and divide.
- The top 10 causes of death - World Health Organization (WHO)Lower-middle-income countries have the most balanced top 10 causes of death: 5 noncommunicable, and 5 communicable, with the new cause COVID-19 topping the list and costing over 4 million lives in 2021.
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