Introduction Earth is the only planet in the solar system that has a life, this is because of the earth’s unique atmosphere. The evolution of the earth’s atmosphere did not happen suddenly, it takes place through various processes and the present atmosphere has been created. Life has not yet been found among the other planets […]
Evolution of Earth’s atmosphere Read More »
Introduction Grassland abiotic factors refer to the various Physical or non-living components of the grassland. It is an area where grass predominates in vegetation. The grasslands are naturally seen on all continents, except the Antarctic continent. Some elements have a direct and indirect role in the formation of grasslands in every corner of the globe.
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Introduction At the beginning of the creation of the solar system, the earth was a hot gas ball. It is located at the third position from the sun. The surface of the earth then gradually cooled as a result of billions of years of heat radiation and changed its gaseous state to a liquid state.
What are the three layers of earth? Read More »
Introduction About 40 types of basic elements are needed to sustain life on Earth and among these, there are 6 elements that lay a vital role in sustaining the life of an organism. These 6 elements are carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur. The most essential elements are carbon, oxygen, and nitrogen, and play
Nitrogen cycle definition and description Read More »
Introduction The earth’s crust takes various forms due to its origins and various effects of corrosive forces as a result, different parts of the earth’s surface have different heights called landforms. There are many variations that can be observed on the surface of the earth. These variations were not present at the beginning of the
How are mountains formed? Read More »
1. Introduction A wide variety of organisms like plants, animals, and microorganisms live on Earth. All these organisms comprise mainly 6 elements viz. carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus. there is a balanced cycle between the living and the nonliving world for all the elements. Thus all these elements rotate from the environment to
Phosphorus cycle: Definition and description Read More »
Introduction Plants, animals, and various types of microorganisms are made up of different types of organic matter. These organic matters are necessary for survival the most important of these are hydrogen, oxygen, and carbon. Other essential elements include nitrogen, phosphorus, sulfur, calcium, magnesium, iron, potassium, etc. There are also various salts and basic elements that
Sulfur cycle: Definition and description Read More »
Introduction In ancient times, people used to think that the world had not changed. There is no such concept of evolution and origin. In the fifth century, BC Xenophane discovered some fossils and showed that there is a difference between the past and present organisms. In the fourth century BC, Aristotle proved that there are
Homologous vs Analogous organs Read More »
Introduction The word evolution comes from the Latin word evolvere. That means gradual development. Evolution refers to the process by which a simple organism evolves into a complex organism. The evolutionary process occurs slowly. At first, unicellular and simple organisms emerged on Earth. Evolution describes the emergence of more advanced and complex species from these
Darwin’s evolution theory or Darwinism Read More »
Introduction In 1809, the French biologist Lamarck published the first modern theory of evolution in his book ‘Philosophie Zoologique’. Lamarck’s evolution theory states that all the traits that an organism acquires by responding to changes in the environment are passed on from one generation to the next. According to Lamarck, although two plants of the
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