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www.reference.com/article/courage-important-674d413bd7710d9b

Courage is important because it allows people to develop a sense of leadership and confidence and provides benefits for businesses, through fearless, more productive employees. Courage is regarded as an admirable personal trait, providing benefits for people personally,...

www.reference.com/article/need-probability-98ee1b08ef61f205

Mathigon notes that studying probability is necessary in order to better understand the likelihood of a particular thing happening. An individual is able to better calculate such likelihoods if he has more information and context about the subject he is attempting to pr...

www.reference.com/article/need-government-d896524b94388efa

Society uses government to put in place laws designed to protect individuals and groups within society. Without laws, society would devolve into anarchy, with individuals seeking their own goals at the expense of others.

www.reference.com/article/need-food-7b4364471e817fa4

Simply put, food fuels the human body. Without it, the body cannot grow or perform at its best, the organs stop working properly, and the body eventually dies. Food supplies nutrients, which are used by every cell in the body as building materials and fuel.

www.reference.com/article/need-computers-8115b8db0a2c1658

Computers play many important roles in society, helping to promote communication and interaction with others as well as providing users a way to shop, play games and have access to education. Additionally, computers provide a convenient way to create and store valuable ...

www.reference.com/article/need-animals-8b1e0ef048f2ef66

Animals are an integral part of the Earth's ecosystem. Each organism in the ecosystem plays a role in supporting the ecological community, which means that animals play a vital role as well. Each organism in the ecosystem depends on the other organisms in the system to ...

www.reference.com/article/need-cars-59a31fce67d46522

Cars are needed for transportation. People drive cars so that they can have the freedom they need to be able to get where they need to go when they need to get there.