Question:
Write a brief note on wind power ?
Answer:
Wind power is the fastest-growing energy source in the world. A wind turbine works the opposite of a
fan. Instead of using electricity to make wind, a turbine uses wind to make electricity
The wind turns the blades, which spin a shaft, which connects to a generator and makes electricity. The
electricity is sent through transmission and distribution lines to a substation, then on to homes,
business houses and schools.
Wind turbines do not have any adverse effect on the environmental. Thats why wind power is gaining
popularity. It is also becoming economically competitive with more conventional power sources - a fact
that’s greatly improving its prospects as a viable energy source.
Resources
Q 1.
What are population pyramids? How do they help in understanding about the population of a country?
Q 2.
What are the four Characteristics of resources?
Q 3.
Give a brief note on mining.
Q 4.
Mention some methods that are used to conserve soil
Q 5.
Name the fibre crops and name the climatic conditions required for their growth.
Q 6.
Write a brief note on terrace farming and intercropping.
Q 7.
Name any two steps that government has taken to conserve plants and animals.
Q 8.
Which sources of energy would you suggest for (a) rural areas (b) coastal areas (c) Arid Regions?
Q 9.
What are the different characteristics of population composition?
Q 10.
Different crops are grown in different regions.
Q 11.
What are natural resources?
Q 12.
Name any three common minerals used by you every day.
Q 13.
What is Nomadic herding?
Q 14.
Write a note on Munna Lai and his farm land.
Q 15.
What is plantation agriculture?
Q 16.
Discuss the role of any two factors influencing population change.
Q 17.
Write any two reasons for land degradation today?
Q 18.
Distinguish between Metallic and non metallic minerals
Q 19.
Resources have value- discuss ?
Q 20.
What are the different kinds of cultivation?
Q 21.
How can one increase agricultural production?
Q 22.
Differentiate between Ubiquitous and localised resources?
Q 23.
Why people are considered a resource?
Q 24.
What is meant by the term industry?
Q 25.
What is an ore? Where are the ores of metallic minerals generally located?
Q 26.
When can people make the best use of nature?
Q 27.
What is the difference between Subsistence farming and Commercial farming?
Q 28.
How does land fulfil our needs?
Q 29.
Write a brief note on the Ministry of Human Resource Development in India.
Q 30.
Name the factors influencing agriculture?
Q 31.
What is shifting cultivation? What are its disadvantages?
Q 32.
Distinguish between the followings.
Primary activities and tertiary activities.
Q 33.
The world population has grown very rapidly. Why?
Q 34.
Complete the sentences below using some of the following words, sparsely, favourable, fallow, artificial, fertile, natural, extreme, densely
Q 35.
Rows of trees planted in the coastal areas to check the wind movement is called intercropping ?
Q 36.
Human interference and changes of climate can maintain the ecosystem ?
Q 37.
Write a brief note on Intensive subsistence farming.
Q 38.
What are the advantages in mixed cropping?
Q 40.
What are the classifications of minerals?
Q 42.
Name a few landforms.
Q 43.
What are the factors that determine the pattern in which a particular region is used?
Q 44.
What are the methods that can be adapted to contain landslides?
Q 45.
Give a brief description of soil composition or the layers of soil ?
Q 46.
What is a water-cycle?
Q 47.
What are the causes for the destruction of natural vegetation and wildlife?
Q 48.
What are bio reserves?
Q 49.
What is the average density of population in India?
Q 50.
Differentiate between emigrants and immigrants.
