Supercontinents 101: Pannotia, Gondwana, and Pangea - Earth.com
网页The three most recent supercontinents were Pangea, Gondwana, and Pannotia. Geologists think there were other supercontinents before these three. We call them Nuna (or Columbia), Rodinia, and Ur. One definition of a supercontinent is a single landmass that contains at least 75% of all land on Earth.
How Does a Lotus Flower Grow: The Life Cycle of a Lotus
网页It can take anywhere from two weeks to two months for the seeds to germinate. After germination, they begin to sprout. A tiny seedling will emerge from the seed coat, and roots will start to grow down into the mud. The method used by the lotus flower is to produce many seeds. Photo from niuniu on iStock.
Earth's Magnetic Field: Origin, Structure, and Impact on Humanity
网页Earth’s magnetic field, also known as the geomagnetic field, is a powerful, vital phenomenon that extends from the interior of the Earth into outer space, where it interacts with the solar wind, a stream of charged particles emanating from the Sun.. This magnetic field serves as a protective shield against solar radiation and plays a crucial role in many of Earth’s life-sustaining systems.
A Beginner's Guide to Tree Identification - Earth.com
网页Learning tree identification is the first step in appreciating this incredible group of woody plants that impact our lives so profoundly. Once you learn to call a tree by name, you will begin to notice more and more features and facts about that type of tree. Eucalyptus trees have interesting branching patterns and bark.
What Is Aluminum? - Earth.com
网页Aluminum. (or aluminium) is a soft, lightweight, silvery metal. It is an element in the boron group on the periodic table of elements, with the symbol Al and atomic number 13. On the earth’s crust, aluminium is the most abundant metal, and the third most abundant of all elements on the earth’s crust, after oxygen and silicon. It accounts ...
What is Environmental Science? - Earth.com
网页Environmental science is a science that contains a wide range of scientific disciplines. These disciplines are grouped together based on the natural environment which they encompass and interact with. These sciences include physical, chemical, and biological components. Environmental science provides an interdisciplinary approach to the study ...
What is Haze? - Earth.com
网页Earth.com staff writer. Haze is an atmospheric phenomenon where dust, smoke, and dry particles in the air obscure the sky’s clarity. When seen from afar, and depending upon the direction of view, haze can have a bluish or brownish tint. Various activities such as farming, vehicle traffic, and wildfires can create a pollutant-clouded atmosphere.
What Is Terrace Farming? - Earthpedia - Earth.com
网页This restructuring allows un-farmable hillsides to become stable, productive farmlands. Some typical crops grown in terraces include barley, wheat, potatoes, corn, tea, olive, grape vines, coffee, and rice. A terrace is typically about 2-3 meters wide and 50-80 meters long. Some terraces flood with rain water, such as those used to farm rice.
Guide to Identifying Tree Fungus (and the 3 Most Common Types) …
网页The most important part of a fungus in order to identify it, however, is the visible part. Here are 3 common types of tree fungus and examples to look for: 1. Shelf Fungus. This type of fungus is named after the easily identifiable shape they create. They look like little shelves that protrude from the trunk or branches of a tree.
What Are Natural Resources and How Do We Use Them?
网页These raw materials, such as lumber, metals, food, and water are “natural resources.”. Humans have built the world’s economy upon the use, and many times exploitation, of these resources. To understand natural resources, it is helpful to break them into categories. The two most broad categories are renewable and non-renewable resources.
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