When the amount of supplies go from a steady and change and "curve"?????
Answer:
Because of survival instinct.
Explanation:
Before Humans became a social creature, they rely on their power to survive in the harsh environment. They fend for themselves, make their own shelter, fight off all the dangerous alone, etc.
Of course, many of them fail and died since there's only so much that a single human can do.
Knowing this, they try to combine their abilities and form groups to survive in the harsh environment. They soon realized that forming a group dramatically increase the chance of their survival since they can rely on other members to cover each other's weaknesses.
This is why humans started too transformed into a social creature.
The europeans brought infectuous diseses such as the bubonic plague, chicken pox, pneumonic plague, cholera, diphtheria, influenza, measles, scarlet fever, smallpox, typhus, tuberculosis, and whooping cough. The diseases introduced in the Americas by the Europeans were crowd diseases: that is, individuals who have once contracted the disease and survived become immune to the disease.
Those who attribute their poor performance to a lack of ability or to situations beyond their control<u> "demonstrate pessimism".</u>
Nowadays everyone is by all accounts discussing confidence and constructive reasoning yet for a few people who are pessimistic such an exhortation sounds strange.
Actually we can't accuse a pessimistic individual for not tolerating such exhortation about positive thinking in light of the fact that a guidance can just work when it coordinates the individual's conviction framework.
Pessimism can surely aggravate your life, increment your awful temperaments and even outcome in depression. In my book, a definitive manual for getting over depression we clarified how sadness can be simply a condition of loss of expectation a man comes to in the wake of getting to be skeptical.
Industrial cities began to develop because of new technologies and ideas and in order for the factories to grow larger, they needed more workers so the the unemployed people had those opportunities to work there.