Understanding Erosion, Natural Risks, and Landslides
Erosion and Geological Activity
Erosion is identified as one of the principal external geological activities on Earth. Generally, it is considered responsible for the leveling of landforms over time, causing spectacular modifications in the geographical landscape. Various external geological agents exist, leading to different types of erosion. Key examples include:
- Wind erosion
- Glacier erosion
- River erosion
- Marine erosion
Prevention of Structural Damage from Floods
Structural Measures include:
- Building
Popular Types of Bluefish: Tuna, Sardine, Salmon & More
Bluefish Varieties: A Culinary and Biological Overview
Bluefish are rich in fats, meats with intense color, and very tasty. They are important as heart-healthy food, but can sometimes cause indigestion. This group includes:
Tuna
Tuna, commonly known as wild bluefin tuna, belongs to the family Scombridae, order Perciformes. There are several areas where you can find tuna species. Bluefin tuna are distributed throughout the Atlantic, and schools of tuna are located in the Black Sea and the Mediterranean,
Read MoreSpain’s Diverse Climates: A Regional Analysis
Spain’s Diverse Climates
Spain exhibits a wide variety of climates due to its geographical location and diverse topography. Here’s a breakdown of the main climate types:
1) Oceanic Climate
- Location: Cantabrian coast and Atlantic region.
- Temperatures: Mild throughout the year due to the sea’s thermoregulatory effect. No true winter (no month below 5°C). Temperature range: under 15°C.
- Precipitation: High and regular throughout the year, peaking in autumn and spring. Lowest in summer due to the Azores
Solar System Models, Planets, and Galactic Structures
Models of the Solar System
- Geocentric: Earth is motionless in the center of the universe, and all planets revolve around it.
- Heliocentric: All the planets revolve around the sun.
Key Figures in Astronomy
Tycho Brahe (1546-1601)
- Observed a supernova (1572) and a comet (1577).
- Made the best position measurements of stars to date, with errors less than 1 minute of arc.
- Recorded the position of the planet Mars.
- In 1600, Johannes Kepler was hired to analyze the data from 20 years of planetary measurements.
Johannes
Read MoreUnderstanding Earthquakes and Tsunamis: Risks and Prevention
Understanding Earthquakes and Tsunamis
Tsunamis and earthquakes are natural catastrophes, unlike technological disasters caused by human activities, such as the Bhopal gas leak that caused a toxic cloud.
Natural Risk Factors
Natural risk is the likelihood of damage occurring to the population of an area, driven by natural events. A natural phenomenon is not a risk in itself but becomes a threat to humans.
The value reaching the hazard depends on:
- Hazards that can potentially cause an event and its frequency.
Understanding Weather Elements: Insolation, Clouds, and More
Weather Elements
a) Insolation
Insolation refers to the amount of incoming solar radiation reaching the Earth’s surface. In Spain, insolation is at its maximum during the summer and at its minimum during the winter.
b) Cloud Cover
Cloud cover describes the atmospheric conditions where the sky is covered to a greater or lesser degree by clouds. Cloud cover is typically at its minimum in summer and at its maximum in winter. Cloud height is measured using a ceilometer.
c) Temperature
Temperature is the degree
Read More