Question:
Write a brief note on salt.
Answer:
Salt is a dietary mineral essential for animal life. It is composed primarily of sodium chloride. Salt is produced in different forms they are unrefined salt or sea salt, refined salt or table salt and iodized salt.
Salt is a crystalline solid, white, pale pink or light grey in color. It is obtained by evaporation of sea water, usually in shallow basins warmed by sunlight.
It is also obtained from rock deposits.
Salt is used in more than 14,000 commercial applications other than in cooking. It is used in the manufacture of pulp and paper and setting dyes in
textiles and fabric. It is also used in producing soaps and detergents and for making snow-covered roads safe in winter. Salt plays an essential role in our daily lives.
Resources
Q 1.
Name the fibre crops and name the climatic conditions required for their growth.
Q 2.
What are the four Characteristics of resources?
Q 3.
Write a brief note on terrace farming and intercropping.
Q 4.
Give a brief note on mining.
Q 5.
What are population pyramids? How do they help in understanding about the population of a country?
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.
What is plantation agriculture?
Q 10.
The world population has grown very rapidly. Why?
Q 11.
Rows of trees planted in the coastal areas to check the wind movement is called intercropping ?
Q 12.
Name any three common minerals used by you every day.
Q 13.
Which sources of energy would you suggest for (a) rural areas (b) coastal areas (c) Arid Regions?
Q 14.
What are the different characteristics of population composition?
Q 15.
What is meant by the term industry?
Q 16.
Mention the different types of resources.
Q 17.
What is mixed cropping or mixed farming?
Q 18.
What is sustainable development?
Q 19.
Write any two reasons for land degradation today?
Q 20.
Write a note on Munna Lai and his farm land.
Q 21.
Different crops are grown in different regions.
Q 22.
How was the word agriculture, coined?
Q 23.
What are natural resources?
Q 24.
What is a water-cycle?
Q 25.
What is the average density of population in India?
Q 26.
Discuss the role of any two factors influencing population change.
Q 27.
Suggest three ways to conserve water.
Q 28.
Distinguish between Metallic and non metallic minerals
Q 29.
Write a brief note on Intensive subsistence farming.
Q 30.
What is Nomadic herding?
Q 31.
How can one increase agricultural production?
Q 32.
What are the causes for the destruction of natural vegetation and wildlife?
Q 33.
Write a brief note on the Ministry of Human Resource Development in India.
Q 34.
Name the factors influencing agriculture?
Q 35.
What is shifting cultivation? What are its disadvantages?
Q 36.
Why people are considered a resource?
Q 37.
Complete the sentences below using some of the following words, sparsely, favourable, fallow, artificial, fertile, natural, extreme, densely
Q 38.
What is an ore? Where are the ores of metallic minerals generally located?
Q 39.
Write a brief note on wind power ?
Q 40.
What can we do to conserve resources?
Q 41.
What are the activities under the secondary sector?
Q 42.
What are the different kinds of cultivation?
Q 43.
How is farming classified?
Q 44.
What are the advantages in mixed cropping?
Q 45.
Name a few landforms.
Q 46.
Why are resources distributed unequally over the earth?
Q 47.
What is agriculture?
Q 48.
What is meant by population composition?
Q 49.
Ganga-Brahmaputra plain of India is an overpopulated region.
Q 50.
Which are the main factors which influence the location of an industry?
