Notes, summaries, assignments, exams, and exercises for Geology for Baccalaureate

Fisheries Resource Depletion

The primary issue facing our oceans is the depletion of fisheries resources, caused by fishing at rates that exceed natural renewal. The pressure from commercial fishing and consumer demand has pushed several species to the brink of extinction. While modern fishing gear is highly effective, it has significantly increased the bycatch of juveniles, turtles, dolphins, and other non-target species. In other instances, the decline of marine life is not due to fishing pressure alone, but rather the degradation and pollution of coastal ecosystems.

Strategies for Sustainable Fishing

Part of the problem can be addressed through strict fishing regulations that define where, when, how, and how much fishing occurs:

• Where: Protecting

1. Gravitational Slope Movements

a. This is a gravitational slope movement, which may involve complex slides, rotational slides, or a combination of other slope phenomena.

b. Two primary determinants include:

• Lithological: The presence of weathered surface materials, lack of cohesion, and the depth of various rock strata.
• Structural: The orientation of bedding planes relative to the slope surface and the presence of fractures or faults.

Additionally, anthropogenic factors, such as vegetation changes, may contribute to slope destabilization.

2. Hydrograph Analysis

a. A hydrograph represents flow variation over time in a stream.

• Annual hydrograph: Represents average flow changes throughout the year.
• Flood hydrograph: Essential for assessing flood events.

What is Sustainability?

The term "sustainable" refers to the ability to endure. Thus, sustainable development has been defined as one that meets the needs of the present without compromising the ability of future generations to meet their own needs.

Conditions for Sustainable Development

For sustainable development, at least two conditions must be fulfilled:

1. Resource Exploitation Rate: The rate at which resources are consumed cannot exceed their renewal rate.
2. Waste Emission Rate: The waste emission rate must be less than the assimilative capacity of the ecosystem to which it is discharged. For example, until the Industrial Revolution, CO2 emissions from human activities were below the system's assimilative capacity, so that the concentration

Atmospheric Layers and Structure

The Troposphere

The troposphere concentrates the bulk of the atmosphere's mass and all moisture and dust particles. It extends up to 16 km in Ecuador and a minimum of 8 km at the poles. It is where all weather phenomena, such as wind and rain, develop.

The Ionosphere

Situated between 90 and 400 km, the ionosphere is ionized and reflects radio waves.

Environmental Impact Assessment

Declaration of Environmental Impact (EID)

Communication is required by law regarding predicted environmental consequences, and should include the following:

• Project description.
• Consideration of alternatives to actions that are performed.
• Environmental inventory prior to completion of the activity.
• Identification of anticipated impacts.
• Protective

Le Corbusier's Villa Savoye: A Machine for Living

Built around 1930, Villa Savoye is a primary case of the application of the principles of functionalism postulated by Le Corbusier. In the early 20th century, Le Corbusier defined the house as a "machine for living." He wanted to impose the idea of applying industrial construction methods to the field of architecture. The base of his work was the geometry of the simplest forms and management according to the pace of mathematics. He defended the idea that housing should be supplied with fresh air, light, and all kinds of modern amenities. He opened the interior of new buildings and installed ramps for what he called architectural walks.

His main contributions were:

• The use of simple volumes such

Item 11: Impacts in the Atmosphere

Sources of Air Pollution

Natural Sources

Natural sources are more significant than those related to human beings, but they are spread around the planet:

• Volcanic eruptions: Emit sulfur compounds, carbon, nitrogen, and suspended particles.
• Natural forest fires: Release CO2.
• Finest sediment particles: They are lifted by wind in areas of low vegetation, such as deserts.

Anthropogenic Sources

Anthropogenic sources result from human activity. Artificial sources can release pollutants but also promote natural emissions.

Among them are transport, industrial processes, and household heating.

Local Effects of Air Pollution

Photochemical Smog

Photochemical smog can be defined as a mixture of toxic substances formed in the lower

Historical Materialism of Karl Marx (1818–1883)

Karl Marx was a German philosopher, economist, historian, and political theorist. The core intent of Marx's thought is famously captured in his Theses on Feuerbach: "The philosophers have only interpreted the world in various ways; the point is to change it." In this sense, philosophy is understood as both a theoretical and practical instrument that serves to comprehend the society of its period and actively transform it.

The Anthropological Vision: The Active Social Being

According to Marx, the human being is an active subject who manifests and objectifies their essence through practical activity and labor. Humans are inherently social beings; therefore, human actions depend directly on the way...

Core Ecological Definitions

• Ecosystem: Biocenosis + biotope + their interactions.
• Biotope: The physical environment of an ecosystem.
• Biocenosis: All living organisms inhabiting an ecosystem.
• Population: A group of individuals of the same species inhabiting an ecosystem.
• Ecological Niche: The specific function of a species within an ecosystem.

Biomass and Productivity Metrics

• Biomass: The mass of living material present at a specific moment in a specific space.
• Production: The amount of biomass produced in a specific time at a specific trophic level.
• PPN (Net Primary Production): Biomass increments of producers.
• PPB (Gross Primary Production): Total energy fixed by plants minus respiration.
• PSN (Net Secondary Production): Biomass increments of consumers.

Navarra's Diverse Climate Zones

1. Pyrenean Mountain Climate (Alpine and Oceanic Influence)

The Pyrenean valleys feature an alpine climate, although oceanic influence is maintained, resulting in high rainfall. High altitudes lead to snow accumulation. Precipitation and temperatures decrease towards the southeast due to less oceanic influence.

• Winters: Long and cold.
• Summers: Dry, short, mild, and bright.
• Frost-Free Period: Varies from 90 to 160 days.

2. Oceanic Climate (Northwest Wetland)

This climate corresponds to the northwest wetland area, characterized by the abundance and distribution of rainfall throughout the year. This is due to the proximity to the Bay of Biscay, from where atmospheric disturbances (the polar front) move from west to east....

Agenda 21: A Program for Sustainable Development

Agenda 21 is a program of the United Nations focused on sustainable development. It was adopted at the Earth Summit in 1992, held in Rio de Janeiro, by more than 178 governments. In 1997, five years after the Earth Summit, another conference was held to study the progress of Agenda 21's implementation. Agenda 21 emphasizes that education can be a transformative force.

Key Environmental and Development Concepts

Sustainable Development

Sustainable Development, as defined in 1987 by the Brundtland Commission Report, states: "Development that meets the needs of the present without compromising the ability of future generations to meet their own needs."

Environment

The Environment, as defined by the United...