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The most important and simple things you need to know about a topic./ Once you know the basics, everything becomes easier.
Definition: the way of life of a group of people, including their traditions, food, language, music, and art. Examples:Every country has its […]
natural water on Earth’s surface (lakes, rivers, waterfalls) that is not salty.
Staying on or above a surface (usually in air or water) without sinking.