Notes, summaries, assignments, exams, and problems for Secondary education

Heavy Industry

In heavy industry, raw materials are transformed into semi-finished products that are then used in other industries. Heavy industries require large capital investments and occupy vast areas near energy sources and raw materials.

Types of Heavy Industry

• Heavy Chemical Industry

  It uses many different raw materials (e.g., coal, hydrocarbons, sulfur, salts) to produce essential materials for other industries (e.g., fuels, fertilizers, acids, explosives).

• Metallurgy

  It transforms non-ferrous minerals into metals (e.g., aluminum and copper) and semi-finished products (e.g., laminates, shaped, and molten metals) for other industries.

• Ferrous Metallurgy

  It transforms iron into steel to make machinery, rails, and other elements required by many

Troposphere

The troposphere is the layer that contains 20% of all the gases of the atmosphere. Meteorological phenomena, such as clouds and precipitation, take place in the troposphere.

Stratosphere

The stratosphere is the layer that contains the ozone layer. This absorbs much of the Sun's radiation, so temperatures rise in the stratosphere.

Mesosphere

The mesosphere has very low temperatures, reaching -140°C.

Thermosphere

The thermosphere is also known as the ionosphere. Temperatures in this layer are very high.

Exosphere

The exosphere is the outer layer of the atmosphere. Artificial satellites orbit the Earth in the exosphere.

White lions are a rare color mutation of lions, known for their stunning white fur. They have short pointy ears and their eyes can be grey, blue, or green. With strong bodies and big teeth, they are truly magnificent creatures.

Home

White lions originally lived in savannas and woodlands, but due to their endangered status, they can now be found in zoos.

Food

White lions typically eat herbivores like zebras and gazelles.

Why Are They the Ideal Pet?

White lions are incredibly rare and more interesting than regular lions or other felines. They are friendly and not aggressive, and they can live up to 25 years. However, it is recommended to have them for a few years and then return them to a reserve.

People's Opinion

While many people believe white lions... Continue reading "White Lions: The Ideal Pet and Amazing Facts" »

English Irregular Verbs

Simple Past and Past Participle Tenses

The Tertiary Sector in Spain

Trade

Commercial activity in Spain is one of the most important activities in the Spanish economy, both for its contribution to the country's wealth (32.3%) and its number of workers (almost 3 million people).

More than 95% of trade companies have less than 10 employees, but these small companies employ almost half of the sector's workers. For products, the most important sectors are food, beverages, and tobacco.

In foreign trade, Spain has traditionally had a negative trade balance because it imported more than it exported. However, this trend has changed in recent years. The countries with which Spain carries out the most commercial exchanges are countries from the EU. Spain imports oil, agricultural, metallic, and... Continue reading "The Tertiary Sector in Spain: Trade, Transport, and Tourism" »

SECONDARY SECTOR

Industry Overview

The secondary sector encompasses all activities that transform raw materials into finished goods. This sector plays a crucial role in economic development, as industrialization drives growth and prosperity. Developed countries typically have well-established industrial networks.

Types of Industries

Industries can be categorized based on their level of technological advancement and the intended use of their products.

1. By Degree of Innovation:

• Mature Industries: These industries, such as textiles, steel, and shipbuilding, emerged during the 18th and 19th centuries and utilize established technologies.
• Advanced Industries: Industries like biotechnology, microelectronics, telecommunications, and robotics represent

The Normandy landings were the landing operations on Tuesday, 6 June 1944, of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as D-Day, it was the largest seaborne invasion in history. The operation began the liberation of German-occupied France (and later Western Europe) and laid the foundations of the Allied victory on the Western Front.

Strategic Planning and Military Deception

Planning for the operation began in 1943. In the months leading up to the invasion, the Allies conducted a substantial military deception, codenamed Operation Bodyguard, to mislead the Germans as to the date and location of the main Allied landings. The weather on D-Day was far from ideal,... Continue reading "D-Day: The Historic Allied Invasion of Normandy" »

The Provisional Government (1868-1870)

After the deposition of Isabella II, the Progressive Party and the Liberal Union formed a Provisional Government (1868-1870).

Key Decisions

• Call elections to Constituent Cortes: these Cortes wrote the Constitution of 1869, a democratic Constitution, with a wide declaration of rights, universal male suffrage and a Parliamentary Monarchy.
• The peseta was declared the official currency.
• Search for a new king: the progressive General Prim was in charge of looking for a new king for the country. After several candidates, Amadeus of Savoy was chosen. He arrived in Spain at the end of 1870.

This democratic period allowed the arrival of propagandists of the International Workingmen’s Association, and the first anarchist... Continue reading "Spanish History: Provisional Government to Restoration" »

Isabella II reigned between 1843 and 1868. Her reign meant the consolidation of Spain as a liberal State. She always preferred the moderates to rule and she called them to government in 1844.

MODERATE DECADE (1844-1854)

The moderates ruled for a decade. The strong man of this period was General Narváez. In this period a liberal conservative and centralized State consolidated, with the support of the aristocracy, the Church and the conservative bourgeoisie.

A new Constitution was written in 1845: sovereignty was shared between the monarch and the people and the State identified with Catholic religion. All the State, except from the Basque Provinces and Navarre, was submitted to the same laws. Tax collection was improved, a Criminal Code was approved... Continue reading "Isabella II: Reign, Politics, and Downfall" »

In the feudal system, the king, the nobles, the clerics, and peasants all had different responsibilities and rights. Basically, the system consists of:

• Somebody gave protection/land to someone else.
• In exchange, the other had to fight or work for their protection.

The King

The king was the ruler of the country and owned all the land. However, he didn't have a big army and was weak. This is why he needed the noblemen and their armies.

The Noblemen

The noblemen were the vassals of the king. They promised obedience and loyalty to the king in the ceremony of homage. They provided knights and in return received a land (fief). In their lands, as lords, they acted as judges and collected taxes for themselves.

Knights

Knights were less important nobles, were... Continue reading "Feudal System: Roles and Responsibilities of King, Nobles, and Peasants" »