THE CRA PERSPECTIVE • EARTH SCIENCE How Much Water Is There on Earth? Can our planet ever run out of water? Exploring Earth's enormous water reserves, the freshwater shortage and the future of humanity. Water is one of the most extraordinary and essential resources on our planet. Our planet is called the Blue Planet for a reason. Approximately 71% of Earth's surface is covered by water. But does that mean we have an unlimited supply of water for human survival? Look at the oceans, rivers, lakes, glaciers and countless streams across the world. Water seems almost endless. It falls as rain, flows through rivers, disappears into the ground, freezes into ice and rises into the atmosphere as water vapour. Yet billions of people experience water shortages. Some communities struggle to obtain safe drinking water, groundwater reserves are declining in several regions, and pollution is making important water sour...
When one thinks of Brazil, images of samba dancers, football legends, tropical rainforests, and the vibrant Carnival leap to mind. But this South American giant is far more than just colorful festivals and scenic beaches. Brazil is a fascinating mosaic of cultures, landscapes, and traditions that stretch across nearly half the continent. 🌍 Geography: The Giant of South America Brazil is the largest country in South America and the fifth-largest in the world . It shares borders with almost every South American country except Chile and Ecuador. From the Amazon Rainforest in the north, which breathes life into the entire planet, to the rolling hills of Minas Gerais and the majestic Iguaçu Falls in the south, Brazil’s geographical diversity is simply staggering. Capital: Brasília Largest city: São Paulo Official language: Portuguese Currency: Brazilian Real (BRL) 🌿 Nature and Biodiversity Brazil is home to one of the most biodiverse ecosystems in the wo...