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

Transportation

The eroded materials produce waste that can be classified into three types: ions, small particles, and clasts or fragments of different sizes. Depending on their size, detrital or clastic sediments are classified as gravel or ridges, coarse and fine sand, silt, and clay. The sediments are transported to lower areas by conveyor agents. The most important agent is water, followed by wind and glaciers.

In some cases, such as with particles dissolved in water, all transported materials are alike. However, in most cases, the lighter particles reach farther than the heavier ones, which are usually larger. This is known as selective transport, resulting in a selection of materials by size. Transport occurs in three basic ways: in solution,...

Tidal Power

Tidal energy is produced by the movement of water masses caused by rising and falling tides and the waves that originate on the sea surface due to wind action.

Benefits:

• It is a clean energy source.
• No waste.
• Almost inexhaustible.

Disadvantages:

• They can only be in sea areas.
• May be affected by weather disasters.
• Depends on the tidal ranges.
• Facilities are large and expensive.

Hydraulic Power

Hydropower is produced by the water retained in dams and reservoirs at high altitudes (which has gravitational potential energy). If at one point dropped to a lower level, this energy is converted into kinetic energy and then into electricity in a hydroelectric power station.

Advantages:

• It is a source of clean energy.
• No waste.
• Easy to store.
• The water stored

Alhambra de Granada: Nasrid Architectural Mastery

The Alhambra belongs to the Nasrid period. During this era, architecture returned to the use of the column, characterized by narrow shafts and thin, smooth profiles. The column stands on a base, and the capital comprises a cylindrical body topped by a parallelepiped.

Key Architectural Features

• False Arches: Used within open bays; the horseshoe arch is largely abandoned, appearing only in the mihrab.
• Arch Types: The most common are the stilted arch (where the arrow of the bow is above the semicircle) and the angular stalactite arch.
• Vaulting: A wide variety of vault types are employed.

Major Structures of the Alhambra

• The Mexuar: Features slender columns.
• Court of the Myrtles: Includes a porch, canted

Vegetation and Water Resources

Vegetation retains rainwater, favors soil moisture, and prevents subsoil erosion, resulting in a greater wealth of water resources in areas with dense plant cover:

• Protects the river basin area from soil evaporation.
• Contributes to slowing the progression of floods.
• Diminishes sediment drag to curb erosion.
• Reduces irregular and seasonal variations by delaying the incorporation of rainwater into streams and slowing surface movement.

Human Action and Waterworks

Through waterworks, humans amend river systems. For example, reservoirs store water during times of abundance to release during shortages, reducing flow irregularity. Dams are used to generate electricity, while transfers modify channel paths and reduce river water...

Major Terrestrial Landscapes and Climates

Euro-Siberian Floristic Region

This region is characterized by three main types:

1. Deciduous Forest

   Composed of evergreen tall trees such as beech (which tolerates cold well, requires moisture, grows slowly, and produces quality hardwood), oak (which poorly tolerates heat, is slow-growing, and produces hardwood), and chestnut. In the transition zone, a marcescent forest appears (deciduous trees that hold their leaves until the new growth emerges), featuring Turkey oak and gall oak. Currently, areas have been stocked with pine and eucalyptus, contributing to soil acidification and degradation.

2. Heath

   A dense thicket of plants like heather, gorse, and broom.

3. Meadows

   Herbaceous vegetation occupying large extensions.

Seismic Wave Behavior

The behavior of seismic waves includes the following:

• The speed of seismic waves increases with the stiffness and density of the rocks they cross.
• The speed of waves in a layer formed by the same materials increases with depth because the pressure causes the materials to become more dense.
• The P-waves propagate faster than S-waves and can cross liquid materials, unlike S-waves.
• All types of seismic waves pass through solid materials.
• When waves pass from one material to another, they are reflected or refracted. These alternations through the inner Earth are called seismic discontinuities, which reveal the internal structure of the planet into layers of different composition and density. The major discontinuities are the Mohorovičić,

Natural Resources and Their Classification

Natural resources are the total quantities and amounts of materials found in the soil that can have an economic value. These resources can be classified into renewable and non-renewable categories.

Types of Resources

• Non-renewable: Their formation has been a long and complex process. Once exhausted, they disappear (e.g., minerals and fossil fuels).
• Renewable: These can be replaced while they are consumed. However, it should be noted that human and plant species, once extinct, are not recovered.

Principal Natural Resources

• Air as a resource: It is a fundamental resource for mankind and the rest of the organisms. The main problem facing this resource is air pollution.
• Soil: This is the support for all forestry,

Prado Museum: Architectural Design

The Prado Museum is conceived as three autonomous bodies or buildings, designed completely independently in terms of image and usage, each featuring separate entrances.

The Central Space

The central space is accessed through a hexastyle portico with Tuscan columns, a rigorous entablature, and a pronounced cornice, surmounted by an attic. Standing before this gate is the statue of Velázquez, which gives the door its name. The central space connects to the cubic volumes of the ends through two longitudinal wings, successfully integrating five distinct and separate cells.

The North Pavilion

The North Pavilion is organized around a roundabout nestled within a square structure. The front is resolved with an Ionic portico...

Item 12: Impacts on the Hydrosphere

Effects of Water Pollution

Eutrophication

Eutrophication is defined as the excessive supply of nutrients in a body of water, leading to a depletion of oxygen. When large amounts of organic matter reach a poorly oxygenated body of water, such as a lake or reservoir, microbial decomposition consumes the available oxygen while releasing phosphates and nitrates.

The surface layers lose transparency and take on a greenish color because algae reproduce in the waters close to the surface, consuming the phosphates and nitrates. The oxygen produced by the algae through photosynthesis escapes into the air, further decreasing the oxygen available for other organisms, which are subsequently harmed.

• Causes: Wastewater containing

Evidence for Climate Change

• Glacier Retreat: The decline of mountain glaciers is accelerating globally.
• Sea Level Rise: Caused by melting continental ice and the thermal expansion of ocean water.
• Increased Global Mean Temperature: Leads to glacier retreat and rising sea levels.
• Frequent Extreme Phenomena: Increased frequency of droughts and floods.
• Biological Shifts: Organisms are modifying their behavior and distribution patterns.

Atmospheric Composition

Dry, clean air consists primarily of Nitrogen (78%) and Oxygen (21%). The remaining 1% is mostly Argon, while Carbon Dioxide represents only 0.0036%. Additionally, the air contains water vapor and aerosols.

The Greenhouse Effect

1. Albedo: 30% of solar radiation is reflected by the atmosphere.
2. Absorption: