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Important Questions

Biodiversity

ICSE · Class 9 · Environmental Science

Most important questions from Biodiversity for ICSE Class 9 Environmental Science board exam 2026. MCQs, short answer, and long answer questions with marks.

57 questions40 flashcards5 concepts

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57 Questions·
multiple choicemultiple correcttrue false

Sample Questions

1multiple correct
1 marks

Which three are the main types of biodiversity?

Show answer

Genetic diversity, Species diversity, Ecosystem diversity

Biodiversity is classified into genetic diversity, species diversity, and ecosystem diversity.

2true false
1 marks

Genetic diversity refers to variation in genes within a single species or population.

Show answer

True

Genetic diversity means differences in genes within the same species or population.

3multiple correct
1 marks

Which of the following are causes of genetic diversity?

Show answer

Mutations, Gene flow, Genetic drift

Genetic diversity arises due to mutations, gene flow, genetic drift, and sexual reproduction.

4true false
1 marks

Species richness means the total number of different species found in an area.

Show answer

True

Species richness is the count of different species present in an area.

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Frequently Asked Questions

What are the important topics in Biodiversity for ICSE Class 9 Environmental Science?
Biodiversity covers several key topics that are frequently asked in ICSE Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Biodiversity — ICSE Class 9 Environmental Science?
Understand the core concepts first, then work through the 57 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Biodiversity?
There are 57 practice questions available for Biodiversity. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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