It depends On my what aspect you're looking at it from. According to the theories of population growth and resources, Malthus theory states that population growth will cause resources to deplete to a point where resources (earths carrying capacity) are unable to support the population resulting in the Malthusian crisis. When the crisis happens, there will be positive checks in place such as droughts an famines to lower the population until a sustainable number for resource usage. This is supported by many Neo Malthusian theories aka modern interpretations but one main fact is that this was said in the 18 century and back then it was simply an agrarian society.
Hence there was boserup's theory which was based on necessity is the Mother of invention ( I think I got this quote wrong) and that basically when population growth increase there will be more technology and improvements to society to increase resources available for usage. Which is largely supported by the high dependence on agriculture in agriculture and technological advancements over the years such as the green revolution and industrial revolution,
Ultimately I support Malthusian theory as it makes sense that no matter what, population will always be a liability in terms of resource usage.
Porosity is a cavity-like discontinuity and occurs due to the entrapment of gases in the molten weld pool. These entrapped gases don't get a chance to escape from the molten weld pool and hence cause porosity.
<h3>Which discontinuities are caused during welding?</h3>
Weld discontinuities can be defined as "an interruption of the typical structure of a weld, such as a lack of homogeneity in the mechanical, metallurgical or physical characteristics of the weld." Porosity is considered to be the most critical discontinuity. Weld discontinuities include porosity, incomplete fusion, excessive melt.
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Answer:
Option C
The charter of Jamestown
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Samuel Nunes (or Nunez), a physician, was one of the first Jewish immigrants to the Georgia colony in 1733. He provided vital medical aid, which helped the settlement survive its first year of existence.
Answer:
Most national parks preserve unique geographic features; Everglades National Park was the first created to protect a fragile ecosystem. The Everglades are a network of wetlands and forests fed by a river flowing 0.25 miles (0.40 km) per day out of Lake Okeechobee, southwest into Florida Bay.
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