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In this unit, you will learn about some of the Earth’s unique qualities that make life possible on this planet. You will also learn how these conditions arose, and how they function together. After reading this unit, you would have a holistic understanding of the life-supporting systems of the Earth. 1.2.
The total area of the surface of the Earth is 510 million km2. Over 361 million km2 or 71% of this area is occupied by the World Ocean and only 149 million km2 or 29% is covered by land. Water and land are distributed unevenly over the globe. In the Northern km2 Hemisphere land extends over 100 million (39% of its area), km2 while there are 49 ...
2 days ago · Earth, third planet from the Sun and the fifth largest planet in the solar system in terms of size and mass. Its single most outstanding feature is that its near-surface environments are the only places in the universe known to harbor life. Learn more about development and composition of Earth in this article.
- Earth is the third planet from the Sun and the fifth largest planet in the solar system in terms of size and mass. Its near-surface environments ar...
- Earth is located in the Orion-Cygnus Arm, one of the four spiral arms of the Milky Way, which lies about two-thirds of the way from the centre of t...
- Earth’s name in English, the international language of astronomy, derives from Old English and Germanic words for ground and earth, and it is the o...
- Earth and the other planets in the solar system formed about 4.6 billion years ago. The early Earth had no ozone layer and no free oxygen, lacked o...
- Viewed from another planet, Earth would appear bright and bluish in colour. In latitudinal belts, swirling white cloud patterns of midlatitude and...
RAFT 2Unit 1 Landforms and landscapesLandforms and landscapesThe Earth’s surface is made up of a vast number of elements that ha. e been brought together to create amazing shapes and formations. To study and understand all these formations, geographers org. nise them into groups based on characteristics that a.
Definition of Geography The study of the physical features of the earth and its atmosphere, and of human activity as it affects and is affected by these, including the distribution of populations and resources and political and economic activities. Physical Geography Physical Geography is the study of physical features of the earth.
Physical Geography Physical geography encompasses the processes and features that make up Earth, including human activities where they interface with the environment. In fact, physical geographers are concerned with nearly all aspects of Earth and can be considered generalists because they are trained to view a natural environment in its entirety, and how it functions as a unit ( Fig. 1.3).
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of Earth’s surface features, it is not known why Earth has plates or what the relationships are between plate tectonics and Earth’s abundant water, continents, and the existence of life. Answering such questions will require improved models, studies of modern plate boundaries, and comparisons with other planets. 6.
