Devices built according to the ? standard have four times longer life expectancy.

NEMA (National Electric Manufacturers Association)

Explanation:

NEMA (National Electric Manufacturers Association) is defined as the association in the field of electrical equipment that certifies the manufactured electrical tool and equipment.

It has type four certification which gives assurance about the protection of equipment use and existence in indoor as well as outdoor area without getting damaged and degraded.It has the tendency to repel dirt, corrosion, blowing wind, rain etc.

Therefore, the devices that are built with the standards of NEMA have higher expectancy of life as compared to other equipment and tools.

levels of production can be increased by technology while holding labor and capital constant, because increased technology makes the production process more efficient. subsequently, the lras curve is almost a vertical line, that can shift to the right, with an increase in technology.

the relationship between the lras curve and the ppc is that both can make the economy could grow. the ppc achieves that when it shifts outward because of more resources or technological advances while the lras curve shifts if more resources are developed or if there are technological advances.

the lras curve is a vertical line at an output level that represents the number of goods and services a nation can produce over a sustained period using all of its productive resources as efficiently as possible with all of the current technology available to it.

the production possibilities frontier (ppf) is a graphical device that is used for economic analysis of production decisions because the ppf measures the maximum possible combinations of two goods that an economy is capable of producing with its currently available resources and technology.

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explanation: because you need to reduce the pollution on land,the exhaust fumes will stop,and stop it in water,the oil that is in the oceanharms the fish   sorry if you   have been waiting long