Social Science_Board Paper_Class 10_DELHI_Set-3_2007

Four facts about tsunamis are:
1. All low- lying areas can be struck by tsunamis.
2. Tsunamis can move even 50 km per hour on coastal plain, faster than a person can run.
3. Tsunamis can occur at any time of day or night.
4. Tsunamis can travel up rivers and streams that lead to the ocean.

Two main features of Harappan culture are-
1.They had a good drainage system.

2. They were carefully planned cities, as indicated by the layout of their streets and buildings.

The means of mass communication plays a vital and a major role in creating awareness among the people. This will become clear from the following points:
1. Means of mass communication plays a vital role  in increasing awareness about various national or international level programmes and policies.
2. Right of Information act, recently introduced as a fundamental right has made means of mass communication more significant.
3. Doordarshan one of the largest terrestrial networks in the world plays a very important role in this regard as it not only broadcasts programmes related to entertainment but also the educational programmes.

A long term increase in per capita income along with rise in standard of living is termed as economic development.
It is measured by calculating the average income & per capita income.

Two facts which should be borne in mind while selecting a site for a building coastal areas are:
1. To built at least 250 meters away from the sea coast.
2. To construct the building with a plinth level higher than the known high flood level.

Answer will be available soon. 

India is a multilingual country’ as our constitution does not give status of national language to any one language as the, the Indian constitution recognizes 21 languages apart from Hindi and English as official languages Apart from this each state has the freedom to use its own language as the official language which shows that Indian administration utilizes more than one language in its administration.

“Health sector interplays the most significant role in human development.”
 This statement can be justified with the following two bases:

• Health is a base: An healthy person can have a healthy mind. Through which he can contribute in economic activities. Health is the most crucial factor in human development.
• Free from Diseases: An healthy person will not be affected by infections so he will have less diseases and he can earn more. It will help him to live more and therefore an healthy life will help in human development.

Not in syllabus

Indian industries and trade had been ruined under the British rule as it imposed heavy duties on Indian imports in Britain .It also monopolized weavers and cotton producers and compelled them to sell their products at stipulated price to the British.The British also adopted free trade policy which led to free flow of raw material from India .The Permanent Settlement further destroyed the basic rural set up in India leading to disruption in the rural economic life.