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Map– A map is a representation of the whole or part of the earth’s surface drawn to scale. – Shows outline of objects on the ground– Drawn as if the drawer was above the ground– It shows details– Most of
What is Mining? Process of extracting valuable minerals from the earths surface. Formations in Which Minerals Occur i) Veins and Lodes – Occurrence of minerals in crevices, cracks or faults in igneous rocks. ii) Reef – Veins and lodes which
Minerals -Inorganic substances occurring naturally at or below the earth’s surface. Characteristics of Minerals Types of Minerals Rocks – A consolidated material composed of grains of one or more minerals. Classification of Rocks 1. Igneous Rocks -Rocks formed when molten
What is Weather? Weather is the daily atmospheric condition of a place at a particular time. The elements of weather are: A Weather Station A place where observation, measuring and recording of weather elements is done. Factors to Be Taken
The Sun It’s the centre of the universe. Characteristics of the Sun – It is a starA star is a heavenly possessing its own light which it transmits. Nebula/galaxy is a cluster of stars. The earth is in a galaxy called The Milky Way.– It’s
Introduction to the Solar System – Solar system is the group of heavenly bodies comprising the sun and the nine planets. The origin of the Solar System – Definition: A theory is a set of reasoned ideas intended to explain facts or
Introduction to Geography – It is defined as the scientific study of the earth as a home of man.– Study of interrelationship on natural and human phenomena on the earth’s surface. Environment – Defined as the surroundings– Refers to all
Introduction to Radioactivity – Radioactivity was discovered by Henri Becquerel in 1869. In 1898, Marie and Pierre Curie succeeded in chemically isolating two radioactive elements, Polonium (z=84) and Radium (z=88).Radioactivity or radioactive decay is the spontaneous disintegration of unstable nuclides to form stable ones with
Introduction to Photoelectric Effect – Photoelectric effect was discovered by Heinrich Hertzin 1887.Photoelectric effect is a phenomenon in which electrons are emitted from the surface of a substance when certain electromagnetic radiation falls on it.– Metal surfaces require ultra-violet radiation
What are X-rays? – X-rays were discovered by a German scientist namedRoentgen in 1985.– They can pass through most substances including soft tissues of the body but not through bones and most metals.– They were named X-rays meaning ‘unknown rays’.
What is Agriculture? Agriculture refers to a fundamental human activity, which i...
POPULATION STUDIES Is the general activities carried out for the purpose of acqu...
CONCEPT OF SOIL AND SOIL PROFILE Soil appears very complex and thus differe...
GROUND WATER WATER CYCLE Rain falls on the earth surface in filtrates (soaks int...
THEORIES THEORY OF ISOSTASY Denudation has been going on the continents where to...
GLOBE Is the model of the earth Earth Is ball of rock partly covered by wat...
Photograph are the true image pictures showing truly appearance of the earth’s...
What is a map? Map is a scaled conventional representation of the whole or any o...
INTRODUCTION TO SURVEYING Surveying is an art or a science of measuring and reco...
Definitions of Research – Research is the systematic investigation into a...
STATISTICS Statistics is a branch that deals with every aspect of the data. Stat...
