Question:
Name the fibre crops and name the climatic conditions required for their growth.
Answer:
Fibre crops are crops which are grown for their fibers, which are used to make paper, cloth, or rope. Cotton and jute are Fibre crops. Cotton requires high temperature, light rainfall, two hundred and ten frost-free days and bright sunshine for its growth. It grows best on black and alluvial soils.
Jute was also known as the "Golden Fibre". It grows well on alluvial soil and
requires high temperature, heavy rainfall and humid climate. This crop is grown in the tropical areas.
Resources
Q 1.
Which are the two main climatic factors responsible for soil formation?
Q 2.
What are population pyramids? How do they help in understanding about the population of a country?
Q 3.
Which industry is often referred to as the backbone of modem industry and why?
Q 4.
Distinguish between Biogas and natural gas
Q 5.
Mention the different types of resources.
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.
What is Nomadic herding?
Q 9.
What is plantation agriculture?
Q 10.
What are the four Characteristics of resources?
Q 11.
How was the word agriculture, coined?
Q 13.
Mention some methods that are used to conserve soil
Q 14.
Why is land considered an important resource?
Q 15.
What is meant by the term industry?
Q 16.
Distinguish between Metallic and non metallic minerals
Q 17.
What is mixed cropping or mixed farming?
Q 18.
What is the average density of population in India?
Q 19.
The world population has grown very rapidly. Why?
Q 20.
Discuss the role of any two factors influencing population change.
Q 21.
Rows of trees planted in the coastal areas to check the wind movement is called intercropping ?
Q 22.
How can one increase agricultural production?
Q 23.
What are the classifications of minerals?
Q 24.
How are mineral extracted from earth?
Q 25.
Give a brief note on mining.
Q 27.
What are the causes for the destruction of natural vegetation and wildlife?
Q 28.
What is sustainable development?
Q 29.
What is shifting cultivation? What are its disadvantages?
Q 30.
Write any two reasons for land degradation today?
Q 31.
Distinguish between the followings
(i) Agro-based and mineral based industry.
Q 32.
Give reason for Petroleum is referred to as black gold.
Q 33.
Quarrying can become a major environmental concern.
Q 34.
Give a few examples of man-made resources and natural resources ?
Q 35.
What is the difference between Subsistence farming and Commercial farming?
Q 36.
Name the different rocks that minerals occur in?
Q 37.
Write a brief note on salt.
Q 38.
What do the 3Rs stand for in context with conservation of natural resources?
Q 39.
Name a few landforms.
Q 40.
What is a water-cycle?
Q 41.
What is population density?
Q 42.
What are the different characteristics of population composition?
Q 43.
What is resource conservation?
Q 44.
Name the factors influencing agriculture?
Q 45.
Name the fibre crops and name the climatic conditions required for their growth.
Q 46.
Which are the main factors which influence the location of an industry?
Q 47.
Name any three common minerals used by you every day.
Q 48.
What is an ore? Where are the ores of metallic minerals generally located?
Q 49.
Give Reason for Environmental aspects must be carefully looked into before building huge dams.
Q 50.
Give reason for Most industries are concentrated around coal mines.
