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The Solar System & Earth- 2 Video Lecture | Geography for UPSC CSE
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FAQs on The Solar System & Earth- 2 Video Lecture - Geography for UPSC CSE
| 1. What is the composition of the Solar System? |  |
Ans. The Solar System is made up of the Sun, eight planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune), numerous moons, asteroids, comets, and other celestial bodies. The Sun, being the central and most massive object, contains about 99.86% of the Solar System's mass.
| 2. How far is Earth from the Sun? | |
Ans. Earth is approximately 93 million miles (150 million kilometers) away from the Sun. This distance is known as an astronomical unit (AU) and is used as a standard measurement within the Solar System.
| 3. What makes Earth suitable for life? | |
Ans. Earth's suitability for life is primarily attributed to several factors. Firstly, it lies within the habitable zone of the Solar System, where temperatures allow for the presence of liquid water. Additionally, Earth has a diverse atmosphere that provides oxygen, protects against harmful radiation, and maintains a stable climate. The presence of a magnetic field also shields the planet from solar winds. Furthermore, Earth's geological activity, such as plate tectonics, plays a crucial role in regulating its temperature and recycling nutrients.
| 4. How many moons does Earth have? | |
Ans. Earth has one moon, simply referred to as "the Moon." It is the fifth-largest moon in the Solar System and has a significant impact on Earth's tides and the stability of its rotational axis. The Moon orbits around Earth at an average distance of about 238,855 miles (384,400 kilometers).
| 5. What are the common characteristics of the planets in the Solar System? | |
Ans. The planets in the Solar System share several common characteristics. They all orbit the Sun in roughly the same plane, known as the ecliptic. The planets are generally spherical in shape due to their own gravity, and they all follow elliptical paths around the Sun. Additionally, the planets can be classified into two broad categories: terrestrial planets (Mercury, Venus, Earth, and Mars) and gas giants (Jupiter, Saturn, Uranus, and Neptune), based on their composition and physical characteristics.
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Oct 25, 2024 Last updated |
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