I believe the answer is: mathematics
Hull is known because he transform the factors that influenced human behaviors into a numerical value.
He later used this numerical value in order to objectively measures the combination of factors that most likely lead to a certain behavior.<span />
1. Sustainability is a broad discipline, giving students and graduates insights into most aspects of the human world from business to technology to environment and the social sciences.
2.When we use too much fertilizer or pesticide on lawns, gardens or fields, some of it can end up being washing into rivers and lakes which can lead to a drought.
3.Nonrenewable energy resources, like coal, nuclear, oil, and natural gas, are available in limited supplies.Renewable resources are replenished naturally and over relatively short periods of time.The five major renewable energy resources are solar, wind, water biomass, and geothermal.
5.Sustainable energy policies are more likely to succeed if they also contribute toward other societal and economic development<span> objectives.</span>
4.The IPCC predicts that increases in global mean temperature of less than 1.8 to 5.4 degrees Fahrenheit (1 to 3 degrees Celsius) above 1990 levels will produce beneficial impacts in some regions and harmful ones in others.
Natural resource would be the answer
They were called monoplostic monopolies
Your friend is most likely to be a person who suffers from Ophidiophobia.
Ophidiophobia is one of the many specific phobias that exist, in this case it is the irrational fear of snakes, although if it is about being afraid of reptiles in general, it is called herpetophobia.
