🌍 Oceans and Continents
🌊 Earth: The Blue Planet
- When we gently rotate the globe 🧭 or see Earth from the Moon 🌕📸, the most common colour is blue.
- Blue represents water 💧.
- About three-fourths (¾) of Earth’s surface is covered with water.
- That’s why astronauts call Earth the “Blue Planet” 🌍💙.
📖 Definition:
Blue Planet → A name given to Earth because most of its surface is covered with water.
🏞️ Land on Earth
- Another colour we notice is brown 🟤.
- Brown represents land.
- Only about one-fourth (¼) of Earth’s surface is land.
- A large body of land is called a landmass 🏔️.
- A large continuous landmass is called a continent 🌎.
📖 Definitions:
- Landmass → A large area of land on Earth’s surface.
- Continent → A very large continuous landmass, such as Asia or Africa.
🌊 Oceans of the World
- The largest water bodies on Earth are called oceans.
- Oceans store most of Earth’s water and affect weather and climate.
- Examples: Pacific Ocean, Atlantic Ocean, Indian Ocean, Arctic Ocean, Southern Ocean.
📖 Definition:
Ocean → A huge body of salt water that covers a large part of Earth’s surface.
🌦️ Importance of Oceans & Continents
- Oceans 🌊 and continents 🌍 shape the climate of Earth.
- They affect temperature, rainfall, winds, and seasons.
- They support all forms of life → 🌱 plants, 🐾 animals, 👨👩👧👦 humans.
- They influence history, trade, culture, and daily life.
📖 Definition:
Climate → The average weather conditions of a place over a long period.
✅ Key Takeaways
✔️ Earth is called the Blue Planet because most of it is water.
✔️ Oceans = largest water bodies.
✔️ Continents = largest landmasses.
✔️ Together, they shape Earth’s climate, ecosystems, and human life.
⚓ Did You Know? – The Indian Navy Emblem 🇮🇳
- The emblem of the Indian Navy ⚓ carries the motto:
“Sam Noh Varunah” (Śham no Varuṇah). - Meaning → “Be auspicious to us, O Varuna.” 🙏
- Varuna is a Vedic deity connected with 🌊 oceans, ☁️ sky, and 💧 water in general.
- This shows the deep respect for oceans in Indian tradition and culture.
