Chapter 6: Disaster and Co-existence

VVI questions — the ones the board asked most (1)

1. Q1Short answer2 marksAsked: 2026

   What do you understand by ecological imbalance ?

   

   Medha Ma’am

   AskMedha’s AI teacher

   Hear it from Medha Ma’am · 20 s

   Model answer · ecological imbalance

   1. 1.Ecological imbalance means the disruption of the natural balance between the components of the ecosystem.1 mark
   2. 2.This imbalance is caused by human interference, pollution, deforestation, and over-exploitation of natural resources.1 mark

   • Start the first line with 'Ecological imbalance means the disruption of the natural balance' and mention 'ecosystem'.
   • In the second paragraph, list 'human interference', 'pollution', 'deforestation' and 'over-exploitation of natural resources' as causes without repeating the definition.

   Marks split from a structure derived from past papers (checked twice); not Bihar Board’s official scheme

Questions parents and students ask

How many marks does "Disaster and Co-existence" carry in Bihar Board Class 10 Social Science?

In the Bihar Board papers of 2021–2026, this chapter carried about 0 marks and about 0 questions a year; by marks it ranks 32 in Social Science.

Which are the most important (VVI) questions of "Disaster and Co-existence"?

The 1 questions above are from the board’s real papers, each with the years it was asked; the most-asked come first with their full model answers. All 1 written questions of this chapter, with answers, are in the AskMedha app.

Do the answers follow the board’s marking scheme?

BSEB does not publish a marking scheme. Each answer is written point by point on a structure derived from past papers and checked by a second, independent model; it is never called the board’s official scheme.