Many have looked at a rock and wondered how it came to be. Well, the history of rocks begun about 4.5 billion years ago, when dust and gas combined to form the very rocks that make up our beautiful planet. Rocks are the stuff of stars since they were created from elements harnessed far of …
Volcanic eruption
Landslides are among the many natural disasters causing massive destructions and loss of lives across the globe. According to a survey study by the International Landslide Centre at Durham University, UK, 2,620 fatal landslides occurred between 2004 and 2010. These landslides resulted in the death of over 32,322 people. The figure does not include landslides …
Igneous rocks form from the cooling of magma – molten materials in the earth’s crust. The terminology Igneous means fire or heat. In this sense, igneous rocks are formed when molten rock (magma) solidifies either underneath the earth’s crust to form plutonic (intrusive) igneous rocks or on the surface of the earth to form volcanic …
A tsunami is a sudden violent change in the earth’s surface resulting from a destructive sea wave caused by an earthquake or volcanic eruption. The volcanic or earthquake activity usually creates a huge wave underneath the ocean, which eventually come down violently onto the shoreline. The outcomes can be devastating for the communities living adjacent …
A volcano is a fissure – opening or vent – in the earth’s crust through which molten rocks and gases erupt. The molten rocks can be in the form of mixture of hot gases, ash, lava, or other extremely hot substances within the earth’s crust. A volcano looks like a huge heap of soil or …
Smog simply refers to a mixture of liquid and solid fog and smoke particles. Smog is usually seen as yellowish or blackish fog which suspends in the atmosphere or forms a ceiling in the air. It happens when fume, emissions, and particulates – nitrogen and sulfur oxides and volatile organic compounds – react in the …