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.
Mention some methods that are used to conserve soil
Q 2.
What are population pyramids? How do they help in understanding about the population of a country?
Q 3.
What are the four Characteristics of resources?
Q 4.
Which sources of energy would you suggest for (a) rural areas (b) coastal areas (c) Arid Regions?
Q 5.
What is Nomadic herding?
Q 6.
Name any three common minerals used by you every day.
Q 7.
Different crops are grown in different regions.
Q 8.
Name any two steps that government has taken to conserve plants and animals.
Q 9.
Write a brief note on terrace farming and intercropping.
Q 10.
What are the different characteristics of population composition?
Q 11.
Differentiate between Ubiquitous and localised resources?
Q 12.
Name the fibre crops and name the climatic conditions required for their growth.
Q 13.
Discuss the role of any two factors influencing population change.
Q 14.
Complete the sentences below using some of the following words, sparsely, favourable, fallow, artificial, fertile, natural, extreme, densely
Q 15.
Write any two reasons for land degradation today?
Q 16.
What is meant by the term industry?
Q 17.
Distinguish between Metallic and non metallic minerals
Q 18.
What are the different kinds of cultivation?
Q 19.
Give a brief note on mining.
Q 20.
What are natural resources?
Q 21.
What is a water-cycle?
Q 23.
What is resource conservation?
Q 24.
What is shifting cultivation? What are its disadvantages?
Q 25.
Distinguish between the followings.
Primary activities and tertiary activities.
Q 26.
What is meant by population composition?
Q 27.
Rows of trees planted in the coastal areas to check the wind movement is called intercropping ?
Q 28.
Give Reason for Environmental aspects must be carefully looked into before building huge dams.
Q 29.
Resources have value- discuss ?
Q 30.
What are the advantages in mixed cropping?
Q 31.
How can one increase agricultural production?
Q 32.
Name the different rocks that minerals occur in?
Q 33.
How does land fulfil our needs?
Q 34.
What are the methods that can be adapted to contain landslides?
Q 35.
Give a brief description of soil composition or the layers of soil ?
Q 36.
What are the causes for the destruction of natural vegetation and wildlife?
Q 37.
Write a brief note on the Ministry of Human Resource Development in India.
Q 38.
The world population has grown very rapidly. Why?
Q 39.
Which are the main factors which influence the location of an industry?
Q 40.
What is an ore? Where are the ores of metallic minerals generally located?
Q 41.
Write a brief note on Renewable resources ?
Q 42.
Write a note on Munna Lai and his farm land.
Q 43.
What are the classifications of minerals?
Q 44.
What do the 3Rs stand for in context with conservation of natural resources?
Q 45.
What are the two main classifications of power resources?
Q 46.
What are the factors that determine the pattern in which a particular region is used?
Q 47.
How does topography affect distribution of population?
Q 48.
What is agriculture?
Q 49.
What is plantation agriculture?
Q 50.
Why people are considered a resource?
