You can live without it. Subwoofers are bass speakers. Normal speakers have bass elements but are not as "chest rattling" as a subwoofer.
They are perfectly comfortable living indoors. Outdoors, they will need some protection from the elements, and in winter they will need to come inside.
We need oxygen so we need to know how it can help us, and if it can harm us. So knowing about elements help us know which ones are dangerous, and help determine which ones we need in order to live.
8-19% for men 19-30% for women Macro-elements xD
Examples are: carbon, hydrogen, oxygen, nitrogen, phosphorus, sodium, iron etc.
Plants need sunlight, water, carbon dioxide, and nutrients from the soil to live. These elements are used in photosynthesis, the process by which plants create food for themselves. Without these essential components, plants would not be able to survive.
It is because we have no way to make them. It is like sunlight. We don't need it but plants do. Our bodies are made of several elements and without them we would cease to live.
An informed and curious person need some knowledge about all chemical elements.
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code or crack to 4 elements 2
To live we need Water, food, and shelter.