Answer:
more than 50 percent.
Explanation:
In 2008, more than 50 percent of the total population of earth lives in urban areas because people come to urban areas in order to earn money for their family and achieve higher status in the society. In 2030, about 60 percent of population of earth will live in urban areas. There are a lot of opportunities of jobs in the urban cities while with the increase in population, the rural areas are also converted into urban areas.
EXPLANATION: D. all of the above
<span>Thoreau said that "under a government which imprisons any unjustly, the true place for a just man is also a prison". What he was meaning by this was that a man who has been unjustly punished has more motivation to install change. The impact of his imprisonment will provide more influence than his debate without the punishment.</span>
I believe the answer is: scientific stage
In the scientific stage of societal develoment, people start to rely more on empirical evidence to drive their decision rather than religion or any forms of diety. In this stage of development, innovations would start to flourish and society tend to keep inventing things that increase their prosperity.
Answer:
Convenience of the research and husbandry staff
Explanation:
It is proper to house social animals nicely because the housing and management of their homes is important to the quality of research data to be gotten when the animals are used for teaching or testing programs.
Animals are properly kept and managed in order to obtain the right species-behaviors required and reduce stress-related behaviors.
Keeping of animals should not be for the convenience of the research staff. but for scientific and behavioral reasons also with an eye on associated health problems