CH: 6 Geography
Class 10th Ch: 6 Manufacturing Industries
CBSE Class 10th
Session 2022-2023
NCERT IMPORTANT QUESTIONS
Class 10th SST Geography CH: 6 Manufacturing Industries Important Questions
CBSE Board and other State Board
Important Extra Questions For Class 10th SST
What are the three different type of method used to control pollution?
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(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 wastewater.