Notes, abstracts, papers, exams and problems of Secondary education

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The Umayyad Dynasty and the Rise of Islam

Classified in History

Written at on English with a size of 5.13 KB.

After Ali's Death, the Rise of the Umayyad Dynasty

After Ali's death, Mu'awiya took over the caliphate, founding the Umayyad dynasty (661-750) and moved the capital to Damascus. Mu'awiya achieved the modernization of the army, which led to territorial expansion. He introduced registries in administration and an effective postal system. On a political level, he practiced a tribal system of leadership, reviving Shura (council of elders) and wufud (delegations sent by tribes to inform the caliph). Therefore, in this era, blood and tribal relations resurfaced, substituting the former religious faith as the main element of unification of society. Mu'awiya named his son Yazid as his successor. There were many revolts in Medina (by old Muslim families

... Continue reading "The Umayyad Dynasty and the Rise of Islam" »

EU-UK Trade and Cooperation Agreement: A New Partnership

Classified in Social sciences

Written at on English with a size of 1.61 KB.

EU-UK Trade and Cooperation Agreement

A New Economic and Social Partnership

While not replicating the prior level of economic integration, this agreement surpasses traditional free trade agreements, fostering continued friendship and cooperation. It encompasses:

Free Trade Agreement

This establishes a new economic and social partnership, extending beyond goods and services to areas like investment, competition, state aid, and more. It ensures:

  • Zero tariffs and quotas on compliant goods.
  • A level playing field through high standards in environmental protection, climate change action, labor rights, and tax transparency, with robust enforcement mechanisms.

Fisheries

A framework for joint management of fish stocks allows the UK to develop its fishing industry... Continue reading "EU-UK Trade and Cooperation Agreement: A New Partnership" »

Characteristics of Living Organisms: A Comprehensive Guide

Classified in Biology

Written at on English with a size of 4.59 KB.

What Makes a Living Thing ‘Living’?

Non-Living Things

Non-living things are made up of inorganic matter. The most abundant chemical elements that make up inorganic matter are: oxygen (O), silicon (Si), aluminum (Al), and iron (Fe).

Living Things

All living things, also called organisms, are made up of the same chemical elements.

The elements that form part of living matter are known as bioelements.

The six most abundant bioelements are: carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), and sulfur (S). They make up more than 90% of living matter. The atoms and molecules of bioelements combine with each other through chemical reactions, producing biomolecules. Biomolecules may be:

  • Inorganic, such as water and mineral salts.
  • Organic
... Continue reading "Characteristics of Living Organisms: A Comprehensive Guide" »

Monopolistic competitors do not enjoy the ________ demand of perfect competition. As a result, firms will never produce at ________ average total cost.

Classified in Economy

Written at on English with a size of 3.03 KB.

It affects the behavior of consumers in a broad sense such as, for example, prompting them to make decisions that they would not have otherwise adopted.  

Collusion is a secret agreement between two or more parties for a fraudulent, illegal or deceitful purpose. It results in high prices leading to lower demand and production: it is illegal under EU law and economically harmful for the nation and/or the European economies. This lead to smaller firms as average cost are higher and so the industry is less efficient.

Collusion among firms result in high prices leading to lower demand and production; thus, it is illegal under EU law and economically harmful for Europe as a whole.

Perfect Collusion (acting like a single firm) is characterized by the

... Continue reading "Monopolistic competitors do not enjoy the ________ demand of perfect competition. As a result, firms will never produce at ________ average total cost." »

Understanding Force, Motion, and Newton's Laws

Classified in Physics

Written at on English with a size of 4.14 KB.

What is Force?

Force is a push or pull that can deform an object or change its state of rest or motion.

Types of Forces

  • Contact
  • Non-contact
  • Instantaneous
  • Constant

Formula of Force

F = m • a

Difference Between Force and Weight

Weight is a force. Everything on Earth is pulled down towards the ground by gravity. The weight of an object is how hard gravity pulls down on it.

Larger objects get pulled more strongly, so they weigh more than smaller objects. When scientists want to talk about how much stuff is inside something, they talk about mass.

Causes of Force

Forces arise when two or more bodies come into contact. For example, when there is a crash or when you push a door.

Bodies, even if they are not in contact, exert a force on others. For example, the... Continue reading "Understanding Force, Motion, and Newton's Laws" »

The Caliphate of Córdoba and the Impact of the Black Death

Classified in History

Written at on English with a size of 1.15 KB.

The Caliphate of Córdoba and the Emirate of Córdoba

The Caliphate of Córdoba was an Andalusian Muslim state with its capital in Córdoba, proclaimed by Abderramán III. The Emirate of Córdoba was an independent emirate with its capital also in Córdoba.

The Black Death

The Black Death has been one of the most devastating pandemics in human history. It affected Europe in the 14th century and peaked between 1347 and 1353, killing more than a third of the European population. The Black Death had an extremely high mortality in Europe because people lived closely together without any type of hygiene in the most affected areas. The plague spread from Italy throughout Europe, affecting territories of present-day France, Spain, England, Britain, Germany,... Continue reading "The Caliphate of Córdoba and the Impact of the Black Death" »

The Persian War, Peloponnesian War, and Alexander the Great

Classified in History

Written at on English with a size of 958 bytes.

The Persian War

The Persian War began in the 6th century BC. They conquered many of the polis in Asia Minor and in the eastern Mediterranean. These cities rebelled against the Persians. The first Persian War ended when the hoplites defeated the Persians at the Battle of Marathon. King Xerxes I began the second Persian War but was defeated at the Battle of Salamis.

The Peloponnesian War

Under the leadership of Athens, many polis formed a union called the Delian League. The domination of Athens threatened other polis such as Sparta, which opposed the Delian League of Athens and its allies. The two sides fought against each other in the Peloponnesian War. Sparta won the war and became the leading polis.

Alexander the Great

Philip II of Macedon took... Continue reading "The Persian War, Peloponnesian War, and Alexander the Great" »

Understanding Urban Settlements and City Classification

Classified in Geography

Written at on English with a size of 3.66 KB.

City

City: definition vary around the world. Rural settlements: Small settlements that are either dispersed or concentrated in villages, agricultural and livestock farming are predominant/ Urban settlement: large settlements are normally known as cities or towns, have a higher number of people employed in industry or services. Concept of a city: Number of inhabitants- more than 10.000 people are classified as cities/ economic activity: urban areas are identified mostly by secondary and tertiary activities/ High population density: Have traditionally been traits of a city. Urban morphology types: irregular, orthogonal and radial. Irregular: irregular shape, made up of narrow, windy streets/ orthogonal: fairly regular, streets usually run at right... Continue reading "Understanding Urban Settlements and City Classification" »

Causes and Consequences of World War II

Classified in History

Written at on English with a size of 5.5 KB.

The Causes of World War II

The Second World War was a vast conflict fought in Europe, Asia and other parts of the world. It was a conflict between the Axis powers, led by Germany, Italy and Japan, and the Allied powers that included Britain, the USSR, France and (from 1941) the United States.

  • The impact of World War I: the peace treaties: Germany lost territory, and its economy was damaged by the need to pay war reparations.

  • The rise of fascism and nationalism: many people feared that there would be a communist revolution in their own countries, people considered that fascism and extreme nationalism were the most effective way to combat communism.

  • The weakness of democracies: democracies like Britain and France wanted to avoid a new war at any

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fiska

Classified in Geography

Written at on English with a size of 4.38 KB.

Energy sour7

Renewable

Non-renewable

Source

Advantage

Desanvantage

Coal

NON RENEWABLE ENERGY

Coal 

accumulation of vegetable matter underground

High calorific power (gives a lot of energy)

Expensive to extract

Highly polluting

Oil

Organic compounds derived from the decomposition of animal and vegetable matter

It has a lot of uses (fuel, creation of products, electricity)

 

Natural gas

Methane

More efficient than other fuels

 

Nuclear energy

Uranium

Gives a lot of energy

It is risky because it creates nuclear radiation

Hydraulic energy

RENEWABLE ENERGY

Water

It is clean, does not generate waste and the water can supply the population

Transporting the energy is expensive

Wind energy

Wind

Clean enerry

Intermittent energy

Solar enegy

Sun

Clean, free and high quality

Requires large

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