Positive reinforcement. Because he leaves before everyone else
<span>9.7 billion
The median estimates for future growth projects the world population reaching 9.7 billion by the year 2050. As the demographic transition continues its course, most countries outside of Africa will trend towards a rectangular age prism. By 2050, most of the world's population growth will take place in Africa.</span>
The producers can create their maximum combination of goods,
as long as the producers address the consumer desires. In this way, they may
likely be efficient with the resources they get and use in a way of creating
goods that will be useful and that it won’t go to waste.
The study is an experiment in light of the fact that the scientists control one variable to decide the impact on another.
An experiment is an investigation intended to contrast advantages of an intervention and standard medications, or no treatment, for example, another medication treatment or aversion program, or to indicate circumstances and end results. This sort of study is performed tentatively. Subjects are chosen from an examination populace, doled out to the different investigation gatherings, and observed after some time to decide the results that happen and are created by the new medication treatment, treatment, or intercession.
