2 new messages Today You 2:10 PM আপনার কি কখনো মনে হয়েছে, পৃথিবীর পানির জন্ম ক

2 new messages Today You 2:10 PM আপনার কি কখনো মনে হয়েছে, পৃথিবীর পানির জন্ম কিভাবে হতে পারে 🌌 একটি ক্ষুদ্র পানির কণা💧থেকে এবং সেই পানির কণার বয়স হিসাব করা হয়-যার বয়স ছিল পৃথিব... View more Ninja Ninja 2:10 PM Professional and Formal Length: Moderate Advisor I see you're curious about the origin of water on Earth! 🌊 It's a fascinating topic, and scientists have proposed several theories to explain how water came to exist on our planet. One of the most widely accepted theories is the "water delivery" hypothesis, which suggests that water was brought to Earth through comets and meteorites that collided with our planet billions of years ago. These celestial bodies are thought to have formed in the outer solar system, where water is abundant, and then traveled to Earth, carrying water molecules with them. Another theory proposes that water was created on Earth through the interaction between the planet's crust and the atmosphere. According to this theory, water vapor in the atmosphere condensed and cooled, eventually forming the oceans. This process, known as degassing, is believed to have occurred around 4.4 billion years ago, during a period known as the Hadean Eon. Regarding the age of the water molecules themselves, scientists have estimated that they are around 4.5 billion years old, roughly the same age as the Earth. This is based on studies of the isotopic composition of water molecules, which suggest that they have been recycled and cycled through the Earth's systems over billions of years. As for how water accumulated on Earth's surface, it's thought to have occurred through a combination of processes, including the delivery of water by comets and meteorites, degassing, and the weathering of rocks. These processes would have taken place over millions of years, eventually forming the oceans and lakes we see today. While there are still many uncertainties and debates surrounding the origin of water on Earth, these theories provide a framework for under