Posted inBe smart Our Planet
The Earth’s Mantle: Composition and Depth
The mantle is the thick, rocky layer of Earth located between the crust and the core. It makes up about 84% of Earth’s volume and plays a key role in…
Posted inClimate Environmental Hazards What if?
Signs of Magma Rising from the Mantle to the Surface
One of the clearest indicators of magma movement is seismic activity. As magma pushes through cracks in the Earth’s crust, it causes small earthquakes called volcanic tremors. Scientists monitor changes…
Posted inClimate Ecology Environmental Hazards
Methane: Properties, Sources, and Environmental Impact
Methane (CH₄) is a simple hydrocarbon composed of one carbon atom and four hydrogen atoms. It is the main component of natural gas and one of the most abundant organic…
Posted inNature Our Planet
Nature: The Foundation of Life on Earth
Nature encompasses all living organisms, landscapes, and physical phenomena that exist independently of human activity. It includes forests, oceans, mountains, rivers, animals, plants, and the atmosphere. Nature is both a…
Posted inEcology Nature Our Planet
Animal Diversity on Earth
Animal diversity refers to the variety of animal species that inhabit Earth, ranging from microscopic organisms to the largest mammals. Scientists estimate that there are more than 8.7 million species…
The Biodiversity Crisis: A Global Challenge
The biodiversity crisis refers to the rapid decline in the variety of species, ecosystems, and genetic diversity on Earth, primarily caused by human activities. Scientists estimate that extinction rates today…
Posted inHistory Nature Our Planet
Evolution: The Story of Life on Earth
Evolution is the process by which living organisms change and diversify over time. It explains how simple life forms that appeared billions of years ago gradually developed into the complex…
Overexploitation: When Resource Use Exceeds Nature’s Limits
Overexploitation refers to the unsustainable use of natural resources at a rate faster than they can replenish. It affects wildlife, forests, oceans, soil, and freshwater systems. While human societies depend…
Posted inEnvironmental Hazards Nature Our Planet
Permafrost: The Frozen Ground of the Earth
Permafrost is ground that remains frozen for at least two consecutive years. It is composed of soil, rocks, sand, and organic material bound together by ice. Permafrost is mostly found…
Posted inHistory Nature Our Planet
Pangaea: The Supercontinent of Earth’s Past
Pangaea was a massive supercontinent that existed about 335 to 175 million years ago during the late Paleozoic and early Mesozoic eras. It brought together almost all of Earth’s landmasses…
