Question:
Give a brief note on mining.
Answer:
The process of taking out minerals from rocks buried under the earths surface is called mining. Mining can be classified into Open-cast mining and shaft mining.
Open-cast mining, refers to a method of extracting rock or minerals from the earth by their removal from an open pit or borrow. Open-pit mines are used when deposits of commercially useful minerals or rock are found near the surface.
Shaft mining refers to the method of sinking a vertical or near-vertical tunnel from the top down, where there is initially no access to the bottom. The shafts have to be made to reach mineral deposits that lie at great depths.
Resources
Q 1.
What are the four Characteristics of resources?
Q 2.
Name the fibre crops and name the climatic conditions required for their growth.
Q 3.
Write a brief note on terrace farming and intercropping.
Q 4.
What are population pyramids? How do they help in understanding about the population of a country?
Q 5.
Give a brief note on mining.
Q 6.
Mention some methods that are used to conserve soil
Q 7.
Name any two steps that government has taken to conserve plants and animals.
Q 8.
Differentiate between Ubiquitous and localised resources?
Q 9.
Rows of trees planted in the coastal areas to check the wind movement is called intercropping ?
Q 10.
Name any three common minerals used by you every day.
Q 11.
Which sources of energy would you suggest for (a) rural areas (b) coastal areas (c) Arid Regions?
Q 12.
What are the different characteristics of population composition?
Q 13.
What is plantation agriculture?
Q 14.
The world population has grown very rapidly. Why?
Q 15.
Mention the different types of resources.
Q 16.
What is mixed cropping or mixed farming?
Q 17.
Write any two reasons for land degradation today?
Q 18.
What is meant by the term industry?
Q 19.
Write a note on Munna Lai and his farm land.
Q 20.
What is sustainable development?
Q 21.
Different crops are grown in different regions.
Q 22.
What are natural resources?
Q 23.
What is a water-cycle?
Q 24.
What is the average density of population in India?
Q 25.
How was the word agriculture, coined?
Q 26.
Write a brief note on Intensive subsistence farming.
Q 27.
How can one increase agricultural production?
Q 28.
Write a brief note on the Ministry of Human Resource Development in India.
Q 29.
Name the factors influencing agriculture?
Q 30.
What is shifting cultivation? What are its disadvantages?
Q 31.
Why people are considered a resource?
Q 32.
Discuss the role of any two factors influencing population change.
Q 33.
Suggest three ways to conserve water.
Q 34.
What is an ore? Where are the ores of metallic minerals generally located?
Q 35.
Distinguish between Metallic and non metallic minerals
Q 36.
Write a brief note on wind power ?
Q 37.
What can we do to conserve resources?
Q 38.
What are the different kinds of cultivation?
Q 39.
What is Nomadic herding?
Q 40.
What are the advantages in mixed cropping?
Q 41.
What are the causes for the destruction of natural vegetation and wildlife?
Q 42.
Why are resources distributed unequally over the earth?
Q 43.
What is meant by population composition?
Q 44.
Complete the sentences below using some of the following words, sparsely, favourable, fallow, artificial, fertile, natural, extreme, densely
Q 45.
Which are the main factors which influence the location of an industry?
Q 46.
Which industry is often referred to as the backbone of modem industry and why?
Q 47.
Give Reason for Environmental aspects must be carefully looked into before building huge dams.
Q 48.
Resources have value- discuss ?
Q 49.
Write a brief note on Renewable resources ?
Q 50.
What are the activities under the secondary sector?
