Maapallo

Maapallo (Earth) is the third planet from the Sun and the only known astronomical object to harbor life. It is often referred to as the "world," the "Blue Planet," or simply "Earth." Its scientific symbol is 🜨.

Maapallo is a terrestrial planet, meaning it has a solid, rocky surface. It is the largest of the four inner, rocky planets of the Solar System (Mercury, Venus, Earth, and Mars). Its mass and density make it the largest and densest of these inner planets.

The Earth's shape is an oblate spheroid, flattened at the poles and bulging at the equator. It is composed of several layers, including a crust, mantle, and core. The core is further divided into a solid inner core and a liquid outer core.

The Earth's atmosphere is primarily composed of nitrogen and oxygen, with smaller amounts of other gases, including argon, carbon dioxide, and water vapor. This atmosphere protects the planet from harmful radiation from the Sun and helps to regulate its temperature, making it habitable.

Maapallo has one natural satellite, the Moon. The Moon's gravity influences the Earth's tides and stabilizes the Earth's axial tilt.

The Earth rotates on its axis, completing one rotation approximately every 24 hours, which defines a day. It also orbits the Sun, completing one orbit approximately every 365.25 days, which defines a year. The Earth's axial tilt relative to its orbital plane causes the seasons.

The surface of Maapallo is diverse, consisting of continents, oceans, mountains, plains, deserts, and ice caps. The oceans cover approximately 71% of the Earth's surface and play a crucial role in regulating the planet's climate.

Life on Maapallo is incredibly diverse, ranging from microscopic organisms to large animals and plants. It is believed that life originated on Earth billions of years ago and has evolved into the complex ecosystems that exist today. Human activity is significantly impacting the Earth's environment, leading to concerns about climate change, pollution, and biodiversity loss.