Kathmandu. As the temperature rises, it is important to stay hydrated to escape the heat. Watermelon is a fruit that helps us stay hydrated.It is not only delicious, but it also helps balance the body's electrolyte levels. However, nowadays watermelons prepared with chemicals are found aplenty in the market. Buying such watermelons without proper inspection can lead to various health problems.There are some ways to know whether a watermelon is naturally ripened. Pay attention to color: The outer part of a naturally ripened watermelon is not shiny. If you see a very shiny surface or a uniform green color on...