Question:
Discuss the steps to be taken to minimize environmental degradation by industry?
Answer:
Minimizing the use of water for processing by reusing and recycling it, is done in two or more successive stages.
(i) Harvesting of rainwater to meet water requirements.
(ii) Treating hot water and effluents before releasing them into rivers and ponds.
Treatment of industrial effluents can be done in three phases:
(a) Primary treatment by mechanical means.
This involves screening, grinding, flocculation and sedimentation.
(b) Secondary treatment by biological process.
(c) Tertiary treatment by biological, chemical and physical processes. This involves recycling of waste water.
Manufacturing Industries
Q 1.
List four agro based industries.
Q 2.
Name the three physical factors that affect location of industries.
Q 3.
Mention 4 raw materials needed for a cement industry.
Q 4.
Name any three physical factors that affect location of the industry.
Q 5.
Name two iron and steel producing plants each of Karnataka and West Bengal.
Q 6.
How do industries pollute the environment?
Q 7.
What are light industries?
Q 8.
Name two most important sugar producing states of India.
Q 9.
Name three major air pollutants.
Q 10.
What is the annual production of cement in the country at present?
Q 11.
Why are most of the jute mills of India located in West Bengal?
Q 12.
Name three human inputs that control location of industries.
Q 13.
How does industrial pollution degrade environment?
Q 14.
Why is the iron and steel industry located in Peninsular India only?
Q 15.
Discuss the steps to be taken to minimize environmental degradation by industry?
Q 16.
Describe briefly the distribution of railway equipments industries in India.
Q 17.
Name five electronic goods producing centres of India.
Q 18.
Describe the distribution of ship-building industry in India.
Q 19.
Name four important cotton textile centres of Maharashtra.
Q 20.
three human inputs that control location of industries.
Q 21.
How does industrial pollution degrade environment?
Q 22.
Describe the distribution of ship-building industry in India.
Q 23.
How do industries pollute the environment?
Q 24.
Name the important raw materials used in the manufacturing of cement?
Q 25.
Why are most of the jute mills of India located in West Bengal?
Q 26.
What is manufacturing?
Q 27.
Why is the iron and steel industry located in Peninsular India only?
Q 28.
Describe briefly the distribution of silk textile industry in India.
