Notes, summaries, assignments, exams, and exercises for Geology for Secondary education

Key Architectural Terms and Definitions

Arch

A structural component that allows openings (apertures) in buildings. The pieces forming an arch are called voussoirs.

Archivolt (Arquivolta)

Each of the concentric arches framing a doorway (often Romanesque or Gothic), surrounding the tympanum.

Vault

A roof-like structure that covers the space between two walls or two rows of columns.

Barrel Vault (Semicircular Vault)

A vault shaped like a half-cylinder cut lengthwise. This form is characteristic of Roman and Romanesque buildings.

Groin Vault

Used to cover a square space, formed where two barrel vaults intersect perpendicularly.

Rib Vault (Cruzeria Vault)

A vault characterized by intersecting ribs, typical of Gothic architecture.

Apse or Chevet (Headboard)

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FORM.CAP: Cap Structure and Methylation

FORM.CAP: This form exhibits methylation and sequence features. Cap0 + CH₃ → CH₃ → Cap1 + CaF₂. mG = methylation on the base; Gm = methylation on the ribose. At the carboxyl terminus of the terminal amino acid, there are numerous nucleases that can be phosphorylated.

Cleavage and Polyadenylation

The CSTF (cleavage stimulation factor) and the CPSF (cleavage and polyadenylation specificity factor) are two proteins that are also phosphorylated. The 1st terminal unit links the carboxyl group, transferring the terminal polyA RNA (AAUUAA). The CSTF creates a splicing messenger. The activity known as the "cut" captures another nuclear protein that activates nucleases.

• Recognizes the AAUUAA sequence and makes

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The Tertiary Sector: Services Rather Than Products

The tertiary sector groups economic activities that do not dedicate themselves to producing goods, but to providing services (servicios and prestaciones).

These services can be managed preferentially by:

• Public bodies (state management)
• Private bodies (companies whose owners seek to obtain profits)

The services can preferentially be: social, administrative, financial, cultural, personal, information and communication, commercial, transport, or leisure and tourism.

Commerce

Commerce includes all economic activities related to the purchase and sale of products and services.

Domestic Commerce

Domestic commerce takes place within the country. It is divided into:

• Wholesale trade: the company buys merchandise

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The study of history is one of the most important subjects for understanding humanity. History is the last field of study of humanity. Historians study the evolution of societies, their causes and consequences, and the events that have occurred in the past. The study of history helps us better understand today's society and avoid past errors.

The study of history is largely divided into two stages: prehistory, which covers the period before the invention of writing around 3000 BC, and history, which begins with the invention of writing.

Prehistory

Prehistory is the period from the appearance of the first humans and their instruments until the invention of writing. It began approximately 2.4 million years ago and extends until 3000 BC.

Stages of

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The Earth's Crust: Composition and Structure

The Earth's crust is the outermost layer of the geosphere, composed primarily of solid rock. It is 98.5% constituted by eight major elements:

• Oxygen (O)
• Silicon (Si)
• Aluminum (Al)
• Iron (Fe)
• Calcium (Ca)
• Sodium (Na)
• Potassium (K)
• Magnesium (Mg)

Other elements present include Gold (Au), Carbon (C), Sulfur (S), and Lead (Pb).

Defining Minerals

Minerals are natural, inorganic materials formed in nature. They are defined by the following characteristics:

• Inorganic: Do not contain carbon (C) and hydrogen (H) bonds.
• Solid: Atoms are held in fixed positions.
• Crystalline: Atoms are arranged in a specific geometric pattern.

Materials that do not meet these criteria are classified as mineraloids (amorphous materials). Minerals...

Force and Mechanical Properties

Force is capable of producing an action or modifying the state of motion of a body, or of producing deformations. The unit of force is the newton.

Mechanical properties are the characteristics that determine the behavior of materials under the forces acting on them.

Main Material Properties

• Resistance: the capacity to withstand forces without deforming excessively or breaking.
• Tenacity: the property of some materials that allows them to withstand forces and impacts without breaking easily.
• Weakness: the tendency of a material to break under a small force, either over time or intentionally.
• Elasticity: the property that allows materials to recover their original shape and size after the force that deformed them is removed.

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During the second period of the Restoration, Catalanism in Catalonia managed to banish caciquisme and reached its first major work of government: the Commonwealth (1914-1925). The most important ideological work of political Catalanism, Catalan Nationality (1906) by Enric Prat de la Riba, explained that as a nation, Catalonia had the right to possess a state. He also defended the unity of Spain and the federal articulation of Catalonia.

Political Parties in Catalonia

Political representation in Catalonia was led by the conservative Regionalist League (1901), which emerged from the National Center and the Catalan Regionalist Union. The League suffered two divisions: one that gave rise to the Nationalist Republican Center (1906) and another which...

Atmospheric Phenomena and Cloud Formation

Orographic Clouds: Formation and Rain Shadow

Orographic clouds arise from the shock produced by a moist air mass against a mountain, causing it to climb until it reaches its condensation level. Typically, development is horizontal (strata) and causes precipitation of the cloud in contact with the slope (horizontal precipitation).

Once the air mass is over the top of the mountain, the cloud has lost most of its water. The remainder converts into vapor as it warms while descending the side it was promoted on. As a result, this mountainside is known as a dry or rain shadow.

Convective Clouds Originating on a Front

Convective clouds on a front are those originating from a front—a contact zone between two air...

Geographic Concepts

Latitude: The angular distance (in degrees, minutes, and seconds) from any point on the Earth's surface north or south of the Equator (parallel 0°), measured along a meridian.

Consequences of Latitude

• Solar Intensity: Due to proximity to the Equator, sun rays fall almost perpendicularly on our territory.
• Seasons: We experience two distinct seasons: dry and rainy, rather than four.
• Climate Stability: There is little need for major changes in clothing throughout the year.
• Agriculture: Agricultural production remains constant.

Longitude: The angular distance from any point on the Earth's surface to the prime meridian, measured in degrees.

Consequences of Longitude

• Cultural Context: We are immersed in the Western world, influencing

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Composition of the Atmosphere: The atmosphere is the envelope of the land held around our planet by gravity. It is composed of a set of gases and other gaseous elements in suspension. The atmosphere's presence avoids large oscillations of temperature on the Earth's surface, as solar radiation decreases during the day and prevents excessive heat loss at night. In the absence of the atmosphere, temperatures could reach over 95°C during the day and drop to -180°C overnight. The atmosphere contains the necessary components for organisms to perform their vital processes.

Origin and Balance of the Atmosphere: Gases in the atmosphere originated from the rocks of the Earth approximately 4.6 billion years ago, when the Earth's materials were in a semi-...