Notes, summaries, assignments, exams, and problems for Geography

Global Discoveries and Early Modern Journeys

The Portuguese Explorations

The Portuguese prince, Henry the Navigator, encouraged the development of navigation skills and the exploration of the African coast. There was considerable rivalry with Castilla in this region, but it was resolved with the signing of the Treaty of Alcáçovas in 1479.

The treaty granted Castilla the right to conquer the Canary Islands, while Portugal was allowed to explore the African coast south of Cape Bojador.

Key Portuguese achievements included:

• Reaching Cape Bojador in 1431.
• Reaching the Gulf of Guinea in 1460.
• In 1487, Bartolomeu Dias successfully rounded the Cape of Good Hope.
• In 1498, Vasco da Gama reached India, establishing a direct sea route.

Castilla and the Discovery

Hydroelectric energy is generated by flowing water that turns a turbine. This movement creates a current, and this current is converted into energy using turbines and generators.

Hydroelectric Energy in Bizkaia

In Bizkaia, Alstom Hydro in Bilbao is part of the largest global industrial and technology group related to hydroelectric energy, boasting over 100 years of experience.

How Hydroelectric Energy Works

This energy works because water accumulates in one place, then passes through a turbine. The turbine moves, converting the water's movement into energy.

Historical Evolution of Hydroelectric Power

In the past, a wooden wheel was used in the middle of a river. It had a chain of wood that spun over the river, taking water to generate electricity.... Continue reading "Hydroelectric Power: A Clean Energy Source" »

Understanding Our Environment

Nowadays, everyone seems to be very engrossed in the environment. People are trying to do everything possible to improve our surroundings by recycling, reusing, or reducing our needs. Everyone is aware of the problem, but do they really understand what this entails?

Defining the Environment

It is clear that the environment includes natural resources like fauna and flora, as well as ecosystems and various types of ecological energy. It refers to all elements of the physical and biological world. However, these resources and ecosystems are in danger, primarily due to increasing population and consumption.

The Impact of Human Activity

This has given rise to present climatic changes and global warming, which have led to... Continue reading "Understanding Environmental Challenges and Climate Change" »

CAMINO DE SANTIAGO

pilgrimage route which continue existing, it became a major pilgrimage route in 11th century because of the invasion of Europe.

PRE-ROMANESQUE ART

period in European art, which emerged from Carolingian Renaissance in the late 8th to 11th century.

RENAISSANCE OF URBAN LIFE

began in the 11th century, the population grew and new population centers developed in ancient Roman cities or in new cities.

BOROUGHS

new neighborhoods for craftsmen and merchants, they were also surrounded by walls, these new parts or cities appeared since the 11th century.

BOURGEOISIE

people who live in the borough and became a new social group, formed by aristocracy and traders.

URBAN ARISTOCRACY

the route of the richest families in a medieval city, they belonged... Continue reading "Medieval Urban Development and Cultural Movements" »

Genetically Modified Foods: The Controversy

Genetically Modified (GM) foods are controversial because scientific perspectives often differ from public opinion. Key arguments for and against GM foods include:

• Advantages:
  • Enhanced resistance to pests and adverse weather conditions.
  • Faster growth rates and increased crop yields.
  • Potential for introducing beneficial nutritional traits for human health.
• Disadvantages:
  • Concerns about their "unnatural" nature.
  • Uncertainty regarding long-term health consequences.
  • Potential for unforeseen environmental impacts and changes to ecosystems.

Basque Quality Denomination of Origin Products

Several products carry the prestigious label of Basque Quality Denomination of Origin. Examples include:

• Beans from Tolosa
• Green Peppers

Energy Consumption Evolution: 1900-2050

Description: This graph shows the evolution of energy consumption from 1900 to 2050. It illustrates the use of the following energy sources:

• Renewable: Solar, geothermal, wind, hydroelectric
• Non-Renewable: Nuclear, natural gas, crude oil, coal

Source: Deutsche Shell

Analysis

• 1900: Coal (due to industry) and biomass (wood) were the primary energy sources.
• 1950: Coal, natural gas, and oil (non-renewable) began to grow. Nowadays, their use accounts for 75% to 80% of total energy consumption.
• 1970: Alternative energies (renewable) started being used due to the oil crisis of 1973. Forecasts until 2050 predict that alternative energies will grow in importance, and non-renewable sources will decrease.

Solutions to Prevent

Economic Activity

Economic activity is what humans undertake to acquire goods (products and services) that satisfy consumer needs.

Economic Goods

Economic goods are products and services generated by economic activity.

Products

Products are goods obtained directly from nature (e.g., fish) or transformed into something else (e.g., clothes, books). They can be classified by:

• Composition: They can be consumable (durable consumer goods, such as computers, or non-durable, such as pizza) or capital goods (tools).
• Function: They can be intermediate goods (wool produced by a sheep) or finished goods (the shirt made from this wool).
• Ownership: They can be private (belonging to people) or public (belonging to the state).

Factors of Production

Factors of production... Continue reading "Understanding Economic Activity: Sectors and Factors" »

Authoritarian Monarchies

During the Modern Age, the feudal European monarchies became authoritarian monarchies. The king reinforced his power over the kingdom as a whole by imposing his authority over the nobility and limiting the autonomy of the municipalities. This new way of organizing the state is referred to as the Modern State.

In Europe, authoritarian monarchy took root in France, England and the kingdoms of the Iberian Peninsula. However, Germany and Italy did not manage to create unified states.

Authoritarian monarchies became especially established in England, where the monarchies of the Tudor dynasty, such as Henry VII, dominated the nobility; in France, where the Valois rulers, such as Louis XI, put an end to the influence of the Dukes... Continue reading "Rise of Authoritarian Monarchies in Early Modern Europe" »

Q.9 What are border roads? Mention its Two importances.

Ans. Strategically important roads in The bordering areas of the country are called border roads. These roads are in The northern and northeastern border areas. Importance of Border roads: -

1) Border roads have improved Accessibility in areas of difficult terrain.2) They have helped in the economic Development of border areas.3) Used to supply military equipments to The borders of our country.

Q.10 State any four problems of Road transport in the country.Ans. Major problems are:i. Road transportation in India is Inadequate keeping in view the volume of traffic and passengers.Ii. About half of the roads are Un-mettal and this limits their usage during the rainy season.iii. The National Highways... Continue reading "Comprehensive Guide to Transportation in India: Roads, Railways, and Pipelines" »