Uppermost layer of the earth’s crust on which plants grow. Constituents/Composition of Soil 1. Inorganic Matter Weathered rock fragments made of minerals from parent rock. Forms skeleton or fabric of soil. Forms 45% of total volume. 2. Organic Matter – Read More …
Category: Uncategorized
GLACIATION
Action of moving ice. Glacier – Mass of ice moving outward from an area of accumulation. Formed when snow accumulates on the surface, lower layers are compressed to a harder mass resulting in opaque ice due to air bubbles and Read More …
OCEANS, SEAS AND THEIR COASTS
An ocean is a large and extensive body of saline water occupying a basin between continents while a sea is a large body of saline water on the margins of continents. Nature of Ocean Water Ocean water is salty Due Read More …
LAKES
A lake is a depression on the earth‟s surface where water has accumulated. Classification /Types of Lakes According To the Nature of Water Fresh water lakes which contain fresh water. Salty lakes which have salty water. According To the Mode Read More …
HYDROLOGICAL / WATER CYCLE
Endless interchange of water between the sea, atmosphere and land. Processes in Which Circulation Is Carried Out 1. Evaporation Changing of water into water into water vapour when it‟s heated by solar radiation. Evapotranspiration: Combined loss of water from the Read More …
EXTERNAL LAND FORMING PROCESS
Processes operating on the exterior of the earth resulting in the formation of natural physical features. These are: weathering mass wasting erosion transportation deposition Weathering Mechanical breakdown or chemical decay of rocks “in situ” (without movement) Agents of weathering -Things Read More …
