Biodiversity – Relevance and Conservation Threats to biodiversity have been increasing and they have been recognized by scientists and environmentalist groups. Biological diversity is the term used to describe the complete array of species-plant, animal and insect-that live on land and under water. It is very essential for the normal functioning of ecosystem and the biosphere as a whole. It has a great significance for its ecological, social, economical, cultural...
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December 26, 2015 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, English (Sr. Secondary), English 12, LanguagesNo Comment
Conservation of Forests Essay No. 01 Floods, population problems and other environmental hazards have been increasing. The environmental hazards in this country have not reached the stage prevailing in several highly industrialized countries. We are, however heading to it. Lack of adequate vegetate cover in the catchments or watersheds of our rivers and streams, exploitation of our hill forests indiscriminately to meet the ever-increasing needs of population, the indiscriminate lopping,...
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December 26, 2015 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, English (Sr. Secondary), English 12, Languages3 Comments
Forests for National Welfare Few sights are more beautiful than trees whether in flower or with their branches laden with fruit or just the countless variety in shape and colour of leaf and of the tree itself. Trees are amongst man’s most reliable friends and a country which cares for its future must take good care of its forests. It is indeed sad that in India, hillsides in almost all...
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December 26, 2015 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, English (Sr. Secondary), English 12, LanguagesNo Comment
Essay No. 01 Educational Reforms in India Education is very important for any individual as well as nation. Education helps in all round development of personalities which ultimately help the nation in becoming great and powerful. Unfortunately educational planning and implementation has not been quite satisfactory. Many shortcomings have come to the forefront which ultimately derail the developmental activities. That is why educational reforms have become the most in India to...
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December 26, 2015 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, English (Sr. Secondary), English 12, LanguagesNo Comment
CREATE TABLE COMMAND This command is used to create a new table or relation. The syntax for this command is : Create Table <table name> ( <column 1><data type> [constraint] , <column 2><data type>[constraint], <column 3><data type>[constraint] ); where []=optional The keyword “Create Table” is followed by the name of the table that you want to create. Then within parenthesis, you write the column definition that consists of column name...
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December 23, 2015 evirtualguru_ajaygourOnline Computer EducationNo Comment
Structured Query Language (SQL ) SQL is a language that is used to manage data stored in a RDBMS. It is a Data definition language (DDL) and a Data manipulation language (DML) where DDL is a language which is used to define structure and constraints of data and DML is used to insert, modify and delete data in a database. SQL commands are used to perform all the operations....
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December 23, 2015 evirtualguru_ajaygourOnline Computer EducationNo Comment
Relational Model Constraints Constraints are restrictions on the values stored in a database based on the requirements. For example, in the relation EMPLOYEE, the Employee_ID must be a 4-digit number, the Date_of_Birth must be such that the age of employee should be >= 18 and <=65. Following are the various types of constraints in Relational Model: Domain Constraint–It specifies that the value of every attribute in each tuple must...
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December 23, 2015 evirtualguru_ajaygourOnline Computer EducationNo Comment
Poverty Eradication Programmes-How Far Successful? Poverty is the greatest problem India is facing today. Poverty is a curse on Indian society. More than 40% of India’s population lives below poverty line. They do not have enough money to have two meals per day. Various planning and programmes have been introduced to fight this disease but the result has been far from satisfactory. Poverty apart from economic factor has various psychological...
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December 22, 2015 evirtualguru_ajaygour10th Class, 9th Class, Class 11, Class 12, English (Sr. Secondary), English 12, LanguagesNo Comment