I'm really confused. If you tell me the question, I can help you.
People are exposed to natural radiation sources as well as human-made sources on a daily basis. Natural radiation comes from many sources including more than 60 naturally-occurring radioactive materials found in soil, water and air. Radon, a naturally-occurring gas, emanates from rock and soil and is the main source of natural radiation. Every day, people inhale and ingest radionuclides from air, food and water.
People are also exposed to natural radiation from cosmic rays, particularly at high altitude. On average, 80% of the annual dose of background radiation that a person receives is due to naturally occurring terrestrial and cosmic radiation sources. Background radiation levels vary geographically due to geological differences. Exposure in certain areas can be more than 200 times higher than the global average.
Human exposure to radiation also comes from human-made sources ranging from nuclear power generation to medical uses of radiation for diagnosis or treatment. Today, the most common human-made sources of ionizing radiation are medical devices, including X-ray machines.
Exposure to ionizing radiation
Radiation exposure may be internal or external, and can be acquired through various exposure pathways.
Internal exposure to ionizing radiation occurs when a radionuclide is inhaled, ingested or otherwise enters into the bloodstream (for example, by injection or through wounds). Internal exposure stops when the radionuclide is eliminated from the body, either spontaneously (such as through excreta) or as a result of a treatment.
External exposure may occur when airborne radioactive material (such as dust, liquid, or aerosols) is deposited on skin or clothes. This type of radioactive material can often be removed from the body by simply washing.
Exposure to ionizing radiation can also result from irradiation from an external source, such as medical radiation exposure from X-rays. External irradiation stops when the radiation source is shielded or when the person moves outside the radiation field.
People can be exposed to ionizing radiation under different circumstances, at home or in public places (public exposures), at their workplaces (occupational exposures), or in a medical setting (as are patients, caregivers, and volunteers).
Exposure to ionizing radiation can be classified into 3 exposure situations. The first, planned exposure situations, result from the deliberate introduction and operation of radiation sources with specific purposes, as is the case with the medical use of radiation for diagnosis or treatment of patients, or the use of radiation in industry or research. The second type of situation, existing exposures, is where exposure to radiation already exists, and a decision on control must be taken – for example, exposure to radon in homes or workplaces or exposure to natural background radiation from the environment. The last type, emergency exposure situations, result from unexpected events requiring prompt response such as nuclear accidents or malicious acts.
Medical use of radiation accounts for 98 % of the population dose contribution from all artificial sources, and represents 20% of the total population exposure. Annually worldwide, more than 3600 million diagnostic radiology examinations are performed, 37 million nuclear medicine procedures are carried out, and 7.5 million radiotherapy treatments are given.
Hope this helps
The correct answer is drug abuse
Drug abuse and addiction is a public health problem that affects many people and has a wide range of social and health consequences for individuals.
Addiction begins with drug abuse when a person makes a conscious choice to use drugs, but addiction is not just "the use of large quantities of drugs". Recent scientific research has shown that drugs not only interfere with normal brain function, creating feelings of pleasure, but also have long-term effects on brain metabolism and activity, and at any given time, changes in the brain can transform the brain. addiction abuse. Drug addicted people have a compulsive desire and are unable to give up drugs willingly. Treatment is necessary to end this compulsive behavior.
<u>Answer:</u>
<em>Excavation in Catal huyuk led to the recovery of several artefacts. </em>
<u>Explanation:</u>
<em>Catal huyuk is a Neolithic site in south-central Turkey. Excavations were carried out in the site for the first time in 1958 by James Mellart.</em> These excavations gave an idea about the advanced culture of this site. Excavations revealed the typical settlements of the site.
<em>The houses were not seperated but connected in a honeycomb structure. </em>The entry to the houses was by means of holes in the ceilings or doors on the sides of houses. Doors were reached by using ladders.
Symbolic nature of the religions of that time is evident in the paintings on the walls.<em> The rooms were well plastered. The only means of ventilation was the openings in the ceilings. </em>
Skeletons recovered close to the houses and inside them gave ideas about the burial practices in Catal huyuk. The dead were buried within the village according to their rituals. <em>Caly figurines of women were also found in this site. The famous figurine ‘seated woman of catal huyuk’ is one example.</em>
Answer:
theres multiple ways to answer this question.
Explanation:
you could say the <em>term</em><em> </em>woman has evolved to be of 'sex' to 'gender expression'
or you could say the way women have been <em>perceived in society</em> has evolved to being seen as a mere housekeeper and child-bearer, cook who is nothing without a hardy man by her side, somebody without a voice. now women have the same opportunities as men :)
