🙏 Free review 2020
Required Environmental Legislation
Major Environmental Disasters
✍️ Free Response Questions (FRQs)
🏜 Unit 1: The Living World: Ecosystems
1.1Introduction to Ecosystems
1.10Energy Flow and the 10% Rule
🐠 Unit 2: The Living World: Biodiversity
2.5Natural Disruptions to Ecosystems
👪 Unit 3: Populations
3.0Unit 3 Overview: Populations
3.1Generalist and Specialist Species
3.2K-Selected r-Selected Species
🌏 Unit 4: Earth Systems and Resources
4.3Soil Composition and Properties
🏖 Unit 5: Land and Water Use
5.7Meat Control Methods
5.9Impacts of Mining
⚡️ Unit 6: Energy Resources and Consumption
6.0Unit 6 Overview: Energy Resources and Consumption
💨 Unit 7: Atmospheric Pollution
7.1Introduction to Air Pollution
7.5Indoor Air Pollutants
7.6Reduction of Air Pollutants
♻️ Unit 8: Aquatic and Terrestrial Pollution
🔥 Unit 9: Global Change
9.1Stratospheric Ozone Depletion
9.4Increases in the Greenhouse Gases
⏱️ 2 min read
May 1, 2020
Solar radiation is important because it is the main source of energy for the planet. The amount of energy a location receives is based on season and latitude.
During different seasons, we see variations in the length of daylight and angle of the sun. For example, during the summer, the time of the day spent in daylight is greater and the angle of the sun is at a greater angle. This causes more solar radiation to reach that location. The opposite is true during the winter months.
Another important factor in the amount of solar radiation a location gets is its latitude. At the equator, or 0° latitude, solar radiation hits the surface straight on, so they get more solar radiation per unit of area. However, at higher and lower latitudes, the earth is curved, so the same amount of solar radiation is spread over an area.
Image Courtesy of Wikimedia
Seasons are also largely impacted by the earth’s tilt and rotation around the sun. During certain points of rotation around the sun, the northern or southern hemisphere may lean towards or away from the sun, or the might face away or toward the sun.
For example, during summer in the northern hemisphere, the earth is leaning towards the sun. During winter in the northern hemisphere, the hemisphere is leaning away from the sun. Spring and fall happen between these points of earth’s rotation around the sun.
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