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.
Give a brief note on mining.
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.
Name the fibre crops and name the climatic conditions required for their growth.
Q 5.
Write a brief note on terrace farming and intercropping.
Q 6.
Mention some methods that are used to conserve soil
Q 7.
Differentiate between Ubiquitous and localised resources?
Q 8.
What is plantation agriculture?
Q 9.
Discuss the role of any two factors influencing population change.
Q 10.
Rows of trees planted in the coastal areas to check the wind movement is called intercropping ?
Q 11.
Mention the different types of resources.
Q 12.
What are the different characteristics of population composition?
Q 13.
The world population has grown very rapidly. Why?
Q 14.
Name any two steps that government has taken to conserve plants and animals.
Q 15.
Which sources of energy would you suggest for (a) rural areas (b) coastal areas (c) Arid Regions?
Q 16.
What is mixed cropping or mixed farming?
Q 17.
What are the causes for the destruction of natural vegetation and wildlife?
Q 18.
What is sustainable development?
Q 19.
What is meant by the term industry?
Q 20.
Distinguish between Metallic and non metallic minerals
Q 21.
How can one increase agricultural production?
Q 22.
What is a water-cycle?
Q 23.
What is shifting cultivation? What are its disadvantages?
Q 24.
Different crops are grown in different regions.
Q 25.
Name any three common minerals used by you every day.
Q 26.
Write any two reasons for land degradation today?
Q 27.
What are the activities under the secondary sector?
Q 28.
How was the word agriculture, coined?
Q 29.
Why are human resources important?
Q 30.
Name the factors influencing agriculture?
Q 31.
What are the similarities between information technology industries in Bangalore and California?
Q 32.
Distinguish between Conventional and non conventional sources of energy
Q 33.
Resources have value- discuss ?
Q 34.
What are abiotic resources?
Q 35.
What is Nomadic herding?
Q 36.
What is the difference between Subsistence farming and Commercial farming?
Q 37.
What do the 3Rs stand for in context with conservation of natural resources?
Q 38.
Give a brief description of soil composition or the layers of soil ?
Q 39.
What is the average density of population in India?
Q 40.
Complete the sentences below using some of the following words, sparsely, favourable, fallow, artificial, fertile, natural, extreme, densely
Q 41.
Suggest three ways to conserve water.
Q 42.
Distinguish between the followings
(i) Agro-based and mineral based industry.
Q 43.
Quarrying can become a major environmental concern.
Q 44.
What is a resource?
Q 45.
What can we do to conserve resources?
Q 46.
Name the 3 sectors of activities done by people.
Q 47.
What are the different kinds of cultivation?
Q 48.
How is farming classified?
Q 49.
Write a brief note on Intensive subsistence farming.
Q 50.
What are the 3 categories of Commercial farming?
