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Introduction: Solar Radiation, Heat Balance & Temperature (Part - 2) Video Lecture | Geography Class 11 - Humanities/Arts
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FAQs on Introduction: Solar Radiation, Heat Balance & Temperature (Part - 2) Video Lecture - Geography Class 11 - Humanities/Arts
| 1. What is solar radiation and how does it affect heat balance? |  |
Ans. Solar radiation refers to the energy emitted by the sun in the form of electromagnetic waves. When solar radiation reaches the Earth, it interacts with the atmosphere and the Earth's surface, leading to heat transfer. Solar radiation plays a crucial role in the Earth's heat balance as it is the primary source of energy that drives the Earth's climate system.
| 2. How does solar radiation influence temperature patterns on Earth? | |
Ans. Solar radiation is a major factor in determining temperature patterns on Earth. The amount of solar radiation received by different regions of the Earth varies due to factors such as latitude, season, and the angle at which the radiation strikes the Earth's surface. Regions near the equator receive more direct solar radiation, resulting in higher temperatures, while regions near the poles receive less direct solar radiation, leading to lower temperatures.
| 3. What is the greenhouse effect and how does it relate to solar radiation? | |
Ans. The greenhouse effect refers to the process by which certain gases in the Earth's atmosphere trap heat from solar radiation, preventing it from escaping back into space. These gases, including carbon dioxide and methane, act like a blanket, allowing sunlight to enter but trapping the heat radiated by the Earth's surface. This effect is essential for maintaining the Earth's temperature within a habitable range.
| 4. How does solar radiation impact climate change? | |
Ans. Solar radiation plays a role in climate change as changes in the amount of solar radiation reaching the Earth's surface can influence the Earth's energy balance. For example, an increase in solar radiation can contribute to warming, while a decrease can lead to cooling. However, it's important to note that the primary driver of the current global warming trend is the increase in greenhouse gases, primarily caused by human activities.
| 5. How do scientists measure solar radiation? | |
Ans. Scientists measure solar radiation using instruments called pyranometers. These devices are designed to measure the total amount of solar radiation received at a specific location over a given period. Pyranometers typically consist of a sensor that absorbs solar radiation and converts it into an electrical signal, which can then be recorded and analyzed. The measurements obtained from pyranometers help scientists understand the Earth's energy balance and its impact on temperature patterns.
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Nov 17, 2024 Last updated |
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