What is the characteristics of the earth?
Answer (1)
The Earth has several unique characteristics that make it suitable for life. 1. Shape and StructureOblate Spheroid: Earth is not a perfect sphere but slightly flattened at the poles and bulging at the equator.Layers: It consists of the crust, mantle, outer core, and inner core.2. AtmosphereEarth has a protective atmosphere composed mainly of nitrogen (78%) and oxygen (21%), which supports life.The ozone layer shields living organisms from harmful ultraviolet (UV) rays.3. Presence of WaterEarth is the only known planet with liquid water, covering about 71% of its surface.Oceans regulate temperature and support diverse ecosystems.4. Gravity and Magnetic FieldEarth’s gravitational force holds the atmosphere and everything on the planet.It has a magnetic field that protects against harmful solar radiation.5. Geological ActivityThe Earth's tectonic plates move, causing earthquakes, volcanic activity, and mountain formation.The rock cycle continuously reshapes the planet's surface.6. Supports LifeEarth has a stable climate, oxygen-rich atmosphere, and abundant water, which allow diverse life forms to exist.The biosphere includes all ecosystems, from deep oceans to high mountains.7. Rotation and RevolutionRotation: Earth spins on its axis, causing day and night (takes about 24 hours).Revolution: Earth orbits the Sun, causing seasons (takes about 365.25 days)
