DeKa – Page 7 – Nature Observer

Cycles of Compression and Expansion of a Planet

Planets, including Earth, are not static objects. Over geological timescales, they undergo cycles of compression and expansion caused by internal and external processes. These cycles affect planetary structure, surface relief,…

DeKa October 3, 2025

Climate Environmental Hazards Our Planet

What Is a Mantle Plume?

A mantle plume is a column of hot, solid rock rising from deep within the Earth’s mantle toward the surface. Unlike processes driven by tectonic plates, mantle plumes originate from…

DeKa October 3, 2025

Climate Our Planet What if?

Antarctica Without Ice: What Would Happen?

Antarctica contains about 70% of the world’s fresh water, locked in its massive ice sheets. The ice is up to 4.8 km thick in some places. It reflects sunlight, regulates…

DeKa October 3, 2025

Be smart Ocean Secrets

Sharks: Facts and Myths

Sharks are among the most fascinating and misunderstood creatures in the ocean. While they have existed for more than 400 million years, myths and fear often overshadow the reality of…

DeKa October 3, 2025

Be smart History

The History of Arctic and Antarctic Exploration

The Arctic has fascinated explorers for centuries due to its harsh climate and strategic location. As early as the Viking Age, Norse sailors reached Greenland and parts of North America.…

DeKa October 3, 2025

Climate Stay Safe

How Dangerous Is Flying Today?

Air travel today is considered one of the safest forms of transportation. Statistically, flying is far safer than driving a car. Modern commercial aircraft are designed with multiple backup systems,…

DeKa October 3, 2025

Global Challenges Nourished Future

What Can I Do Today to Help Peace Come Closer?

World peace may seem like a distant and global goal, but every action by individuals contributes to building a more peaceful society. Even small steps, such as choosing kindness and…

DeKa October 2, 2025

Ecology Global Challenges Guardians of Nature

How to Clean the Ocean from Pollution

The ocean is Earth’s largest ecosystem, covering over 70% of the planet’s surface. It regulates the climate, produces oxygen, and supports countless forms of life. However, human activity has led…

DeKa October 2, 2025

Ecology Guardians of Nature Tech & Nature

Can Waste Be Recycled into Atoms?

The idea of recycling waste down to its atoms sounds like science fiction, but it is rooted in real principles of physics and chemistry. Atoms are the basic building blocks…

DeKa October 2, 2025

Green City Tech & Nature

Green Cities: The Future of Sustainable Urban Life

A green city is an urban area designed with sustainability, ecology, and human well-being in mind. Such cities integrate renewable energy, green spaces, eco-friendly buildings, and efficient public transport systems…

DeKa October 1, 2025