Notes, abstracts, papers, exams and problems of Geography

Sustainable Cities

Today, more than half of humanity lives in cities, and this figure is expected to rise to 6 billion by 2050. This requires a rethink of urban planning and management, as rapid urbanization puts unprecedented pressure on the environment and public health. Sustainable cities must be environmentally, economically, socially, and politically healthy, both for the current population and for future generations. These cities are based on four pillars of sustainability:

• Environmental: concerns the ecological footprint, resource consumption, and pollution.
• Economic: concerns job opportunities and attracting investment.
• Social: focuses on quality of life, public health, and social integration.
• Institutional: includes democratic participation

Grasslands

In general terms, a grassland ecosystem is characterized by huge open lands where the vegetation includes different types of grasses with very few trees. There are six main types: tropical grasslands, temperate grasslands, flooded grasslands, tundra grasslands, montane grasslands, and xeric grasslands. Tropical grasslands receive 50-130 cm of rainfall, while temperate grasslands receive 25-75 cm.

Key Characteristics of Grasslands

• Limited annual rainfall
• Dry climate
• Lack of nutrients in the soil
• Frequent droughts and uncertain precipitation
• Frequent forest fires due to semi-arid climate and flash lightning
• Poor vegetation dominated by grasses
• Home to a variety of animal species

Deserts

Most hot deserts occur in high air pressure areas where... Continue reading "Major Ecosystems and Environmental Concepts" »

Globalization's Impact on Economic Inequality

Globalization has created economic inequality between states. One way to analyze this imbalance is to consider each region's participation in the international division of labor. This categorizes countries based on their involvement in the manufacturing process.

Raw Materials

These countries are often the most underprivileged because raw materials have a low market value.

They often lack the industrial infrastructure to exploit these materials effectively. Major oil-producing countries are an exception due to the high cost of petroleum.

Manufactured Goods

Because goods production creates infrastructure and such products are worth more on the market, these countries become more developed. However, production... Continue reading "Globalization's Impact: Economic Shifts, Benefits, and Challenges" »

Classification of Resources

a) Natural Resources

These are resources derived from nature without human intervention. They include:

• Biotic Resources: Resources obtained from living organisms.
  • Examples: Forests, animals, fish, crops.
• Abiotic Resources: Resources derived from non-living entities.
  • Examples: Minerals, soil, water, air.

b) Human-Made Resources

These are resources created or modified by human beings using natural resources.

• Examples: Buildings, machinery, vehicles, roads.

Classification Based on Renewability

a) Renewable Resources

• Can be replenished naturally over a short period.
• Examples: Solar energy, wind energy, water, forests, and crops.
• Features:
  • Regenerate naturally.
  • Sustainable if managed properly.
  • Often environment-friendly.

b) Non-Renewable

The Rise of the Bourgeoisie and Industrial Change

What changes led to the industrial and bourgeois revolution?

The development of businesses increased the wealth of the bourgeoisie, surpassing the traditionally wealthy nobility and clergy whose wealth was based on land ownership. This shift in economic power led to increased social and political influence for the bourgeoisie, despite their unequal treatment as members of the Third Estate.

What were the two new production systems?

• Domestic System: Organized by merchants who supplied artisans with raw materials, collected finished products, and managed their sale.
• Manufacturing: Large workshops employing numerous artisans to produce weapons and luxury items like glass.

Population Growth and Agricultural

Economic Systems of the World

Subsistence System

• Based on the primary sector, families produce what they consume in small quantities. If necessary, they sell or exchange goods on the local market.
• Prevalent before the Industrial Revolution.
• Today, it is only found in less developed societies due to limited access to technology.

Communist System

• The state controls the economy, owning companies and deciding production (what and quantity), prices, distribution of profits, etc.
• Previously common, it is now used in Cuba, Laos, North Korea, Vietnam, and China.
• The Chinese system is a hybrid between communism and capitalism.

Capitalist System

• Means of production are privately owned (technology, companies, machinery, etc.). The motivation to make a profit drives

Prehistory: The Dawn of Humanity

Prehistory is a term used to refer to the first and longest phase or age into which human history has been divided by Eurocentric/Western academic tradition. It covers most of the human past, around 2.8 million years, since the appearance of the first member of the hominid family: *Homo habilis*, the first to make and devise tools made of stone. At the beginning of the 19th century, a Danish archaeologist, Christian Jürgensen Thomsen, concluded that objects and tools made of stone tended to be older than those made of metal. He divided this remote human past into two main phases: the Stone Age and the Metal Age.

Subdivisions of the Stone Age

A few decades later, another archaeologist, John Lubbock, after studying... Continue reading "Human Prehistory: From Stone Tools to the Holocene" »

Disentailment (First Half 19th Century)

Historical Context

Beginning in 1836, the disentailment was driven by Juan Álvarez Mendizábal, Minister of Finance in the liberal government. This reform aimed to modernize the Spanish economy and reduce the power of the Church.

Objectives

• Debt Reduction: Obtain revenue to reduce the massive public debt.
• Agrarian Modernization: Modernize agriculture by transferring lands from dead hands to private owners for exploitation.
• Weakening Church Power: Reduce the economic and social power of the Catholic Church, which owned vast tracts of land.

Consequences

• Economic: Public debt was reduced and state resources increased, but land distribution favored the wealthy, worsening inequalities.
• Social: Many peasants and small

4.2. Economic inequalities.

·Developed countries:

High investment in Research and Development.

Advanced and modern technology.

Access to large markets with a high demand.

Very competitive.

They buy raw materials and sell manufactured products.

Positive Comercial Balance.

Green sources of energy.

Industries more respectful with the environment.

·Emerging countries:

Foreign investment.

Modern technology

Most of the profits go to foreign countries.

Cheap labour and low salaries.

Increasing market, but still not very structured and with a low demand.

Investment in infrastructures.

Technology less respectful with the environment.

Possitive Comercial Balance.

·Underdeveloped countries:

Lack of investment in Research and Development.

Lack of infrastructures, transport... Continue reading "The secondaty sector" »

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Today I come to talk about a very important topic, what is pollution. Today many of the products we consume and the industries that produce them generate pollution. We find air pollution in the air we breathe, in our food, in our clothes and cosmetics… Furthermore, plastic has literally flooded our lives. Pollution is not a long-term problem but it is currently affecting each one of us, for example air pollution that causes respiratory diseases, or deforestation that kills our fauna and vegetation.

The accumulated waste in our seas has become tons and tons. All of our beautiful cities, with our beautiful beaches, our incredible market stalls, could disappear. That is why we must reduce waste, nuclear energy, oil ... All this can be achieved... Continue reading "sswsss" »