Phani – Page 2 – WBBSE Solutions

Chapter 1 Earth as a Planet
Shape of the Earth: Concept of shape of the Earth, Proofs from the earliest days till today, Earth as an oblate spheroid, Concept of Geoid.
Size of the Earth: Size of the Earth in proportion to the other planets and its unique position in the solar system, Earth as the home of humankind, Measurements of the Earth, use of GPS.

Chapter 2 Movements of the Earth
Introduction: Concept of movements of the Earth (mentioning movements of other planets of the solar system), Brief history of observation on Earth’s movements
Rotation: Direction, speed, effects, Alteration of day and night, The Coriolis effect, Inclination of the Earth’s axis and its significance.
Revolution: Direction, speed, effects – Leap year, Aphelion and Perihelion, Yearly apparent movement of the Sun, Variation in lengths of days and nights, Equinoxes and Solstices, Change of seasons

Chapter 3 Determination of Location of a Place on the Earth’s Surface
Introduction: Necessity of determination of the location of a place on the Earth’s surface.
Latitudes: Concept of latitude, angular measurements, properties, important latitudes, their uses; Identification of Heat zones by latitudes.
Longitudes: Concept of longitude, angular measurement of longitudes, properties, Prime Meridian, their uses, longitude and time; Geographical Grid to find location, Concept of Great Circle, Concept of Antipodes and International Date Line, Mathematical calculations on longitudes and time and their relation to Antipodes, International Date Line, Leap year.

Chapter 4 Geomorphic Processes and Landforms of the Earth
Introduction: Elementary concept of geomorphic processes, Different major landforms of the Earth.
Mountains: Mountains – their types; Origin of Flood Mountains (based on Plate Tectonics), Characteristics of Fold Mountain, Concept of old and young Fold Mountains, Origin of Volcanic Mountains, Features of Volcanic Mountains, Origin and Features of Relict Mountains, Importance of Mountains.
Plateaus: Plateaus – their types; Inter-Montane Plateau, Volcanic Plateau, Dissected Plateau, Continental Plateau, Importance of Plateaus.
Plains: Plains – their types; Structural Plain, Erosional Plain, Depositional Plain, Importance of Rains.

Chapter 5 Weathering
Introduction: Concept of Weathering, Erosion, Mass Wasting, and Denudation.
Mechanical Weathering: Block Disintegration, Exfoliation, Granular Disintegration, and Frost action.
Chemical Weathering: Oxidation, Carbonation, Hydration and Hydrolysis.
Biological Weathering: Role of man, plant and animals
Effects of Weathering and Soil Erosion: Effects of Weathering – Soil Formation, Soil erosion and conservation measures.

Group B: Man and Environment

Chapter 6 Hazards and Disasters
Types of Hazards and Disasters: Concept of Hazards and Disasters; A general discussion of different types of Hazards and Disasters: Rood, Drought, Cyclone, Earthquake, Tsunami, Landslide, Avalanche, Blizzard, Volcanism, Forest fire; General nature of Hazards and Disasters in West Bengal, their impact.
Disaster Management: Concept of Disaster Management Role of Students, Disaster Management strategies in West Bengal.

Group C: Regional Geography (Including Maps and Scale)

Chapter 7 Resources of India
Introduction: Concept, classification, and conservation of resources.
Mineral Resources: Iron ore, Coal, and Petroleum – importance and uses, classification, regional distribution, reserves, trade.
Power Resources (Conventional and Non Conventional): Conventional and Nonconventional sources of power – their advantages and disadvantages; Conventional sources of power (Thermal, Hydel, Atomic) – uses and distribution; Non Conventional sources of power (Solar, Wind, Geo-Thermal) – uses and importance.

Chapter 8 West Bengal
Location, Administrative Divisions: Brief outline of West Bengal as a State of India after Independence, Geographical location, Neighbouring countries and states of West Bengal, Administrative divisions of West Bengal.

Physical Environment: Physiography and Drainage of West Bengal – Northern Mountains, Western Plateau, The Plains; Brief overview of the water resources of West Bengal, Merits and demerits of multiple use and overuse of water from river, canal, tank, well, groundwater, Climate of West Bengal, Seasons of West Bengal, Impact of monsoon on climate of West Bengal, Impact of change of season in human life, Soil and Nature Vegetation of West Bengal.

Major Economic Activities: Agriculture of West Bengal, Major crops (paddy, jute, tea); Industries (Iron & Steel, Jute, Cotton, Tea, Food Processing, Tourism, Information technology) of West Bengal – causes of development, problems and prospects; Small scale and Cottage industries of West Bengal; Major Cities, Ports and Tourist Sites of West Bengal.

Chapter 9 Maps and Scale
Fundamentals of Maps and Scale: Concept of map and scale, Maps – their Classification (Topographical Map, Mouza Map, Political Map, etc.), Uses and importance of maps, Scales – their types (Construction of scale not required), Uses and importance of scale.

WBBSE Class 9 Geography Type of Questions and Marks Distribution