Over the next ten years, the world population will grow. Experts expect that there will be more older people in the population rather than younger one.
Increases in a population's or a dispersed group's membership are referred to as population growth. Around 83 million people, or 1.1% of the world's population, are added every year. From 1 billion people in 1800 to 7.9 billion in 2020, the world's population has increased.
There are currently 703 million individuals who are 65 or older, and by 2050, that figure is expected to increase to 1.5 billion. The UN DESA Population Division's most recent population estimates and predictions indicate that by 2050, 1 in 6 of the world's population, up from 1 in 11 in 2019, will be over 65.
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The entity integrity rule states that a primary key attribute can be null. Thus the statement is false.
<h3>What is an entity?</h3>
An entity is refer to any object that exists in reality. These entities are Independent in nature. Each row in a table should be a distinct entity, which is ensured by entity integrity.
The entity integrity rule states that a primary key attribute can not be null as it shows unique characteristics of an entity.No primary key value can be null according to the entity integrity constraint because it is needed to identify specific attribute values in relation.
Therefore, the statement is False.
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Answer:
Subsidy ; Price Ceiling
Explanation:
Subsidy is the financial assistance by government, to increase a good's availability at cheaper price, to people.
Price Ceiling is the maximum mandated price by government, at which a good or service can be sold in market.
Government giving every student a voucher to redeem at any school : Is a form of financial assistance, which reduces the price paid by students. So, it is an example of Subsidy
Government mandating no tuition fee above $6000 : Is specification of maximum mandated price at which a good or service can be sold. So, it is an example of Price Ceiling.
Answer:
It is established by the provisions of the Korean Armistice Agreement to serve as a buffer zone between North Korea and South Korea. The demilitarized zone (DMZ) is a border barrier that divides the Korean Peninsula roughly in half.
Explanation:
Answer: Although modern Western ideas about romantic love owe a certain amount to the classical Greek and Roman past, they were filtered through the very different culture of the European Middle Ages. One can trace the concepts which dominated Western thinking until recently to the mid-12th Century. Before that time, European literature rarely mentions love, and women seldom figure prominently. After that time, within a decade or two, all has changed. Passionate love stories replace epic combat tales and women are exalted to almost god-like status. Simultaneously, the Virgin Mary becomes much more prominent in Catholic devotions, and emotionalism is rampant in religion.
The pioneers of this shift in sensibility seem to have been the troubadours, the poets of Provence (now Southern France). Provençal is a language related to French, Italian and Spanish, and seems to have facilitated the flow of ideas across the often ill-defined borders of 12th-Century Europe. It has often been speculated that Arabic poetry may have influenced their work by way of Moorish Spain. Although this seems likely, it is difficult to confirm.
Explanation: Once the basic themes are laid down by the troubadours, they are imitated by the French trouvères, the German Minnesingers (love poets) and others. Thus, even though the disastrous 13th-Century Albigensian crusade put an end of the golden age of the troubadours, many of their ideas and themes persisted in European literature for centuries afterward.
