holiday home work sst class -10
Answers
Answer:
answer 1.
Human beings use resources as raw material to satisfy their needs and comforts. They use them for making clothes, food, construct houses, set up industries etc. They use energy resources like coal, gases, petroleum, wood etc. for generating power, electricity or as a fuel to run vehicles, factories etc.
answer 2.
The first stage includes surveying, mapping and measurement of characteristics and properties of resources. The second stage examines resources from the points of view of technology, economy and need. The third stage is related to action-oriented planning which emphasises use and reuse of the sources..
answers 3.
Gangetic plain of India is fertile and contributes greatly in agriculture sector but they lack in Industrial sector. Himalayas are endowed with ample amount of beauty and natural resources but lack in infrastructural development
answer 4.
The land under forest has not increased since 1960–61 because in the post-independence era demand for more land to expand agriculture, mainly after Green Revolution, developmental works and infrastructural facilities, led to clearance of forests areas. Industrialization and urbanization also decreased the forest area.
answer 5.
Soil is a living system because it comprises of living organisms such as plants and animals. In addition it also consists of fungi, protozoa, bacteria and other microorganisms. Presence of organic substances indicates the robustness of the soil. Generally five factors determine the quality.