Social Science 1 Marks Each

Minerals which are available only at one or two places in the world are called 'Solitary resources'. e.g., cryolite, which is available only in Greenland.

Soil erosion means the transportation of small soil particles from one place to another by the natural forces like running water and wind.

The thing on which the man is dependent, human needs can be fulfilled by them and the man has the physical and intellectual capability to utilise them can be called a resource. When anything is used to fulfil the needs of human being, it becomes a resource.

It is one of the type of resources classified on the basis of ownership. Resources owned by a country or a region are called national resources e.g., army, international trade.

Rare resources is a type on the basis of distribution. The resources, those available at limited places, are called Rare resources. For e.g., minerals like coal, petroleum, copper, gold, uranium, etc.

Soil conservation means to prevent the soil erosion and to maintain the quality of the soil.

Soil is a thin layer on the surface of the earth which is composed of many smaller particles and minerals, humidity, humus, air, etc. are mixed within it.

Those resources which are used once but cannot be obtained or regenerated are called Non-renewable resources, e.g., minerals.

Those resources which re-generate their used portion themselves within a stipulated time are called Renewable resources, e.g., solar insolation.

The proper management for the restrained and proper usage of resources is called the conservation of resources.

Soil conservation means to prevent the soil erosion and to maintain its quality. In short, soil conservation means to retain the soil particles at their original place.

Erosion means the transportation of soil particles from one place to another with the help of natural elements like moving air and water.

Generally soil means the upper layer of the surface of the earth where the vegetation grows. Soil means thin layer composed of various elements on the surface of the earth.

Proper planning and rational usage of resources is called conservation of resources.

The resources which reproduce themselves as per usage during a specific time or they are inexhaustible are called renewable resources.e.g forests, solar insolation, animals, birds, etc.

Army.

Forest Soil.

Oxygen.

Sun light.

Black Soil.

West Bengal.

Uranium.

Regur.

Building.

Padkhau Soil.