Home > Class 12 Biology > Quizzes > Class 12 Biology Practice Test: Ecosystem - Decomposition
Class 12 Biology Practice Test: Ecosystem - Decomposition
Fast practice, instant feedback. Timer auto-submits when time’s up.
Avg score: 55% • Most missed: “What is the percolation of the soluble substances formed due to decomposition ca…”
Class 12 Biology Practice Test: Ecosystem - Decomposition
Time left 00:00
21 Questions

1. What environment is favorable for the process of decomposition?
2. What is the dark amorphous organic matter rich in cellulose and lignin that is highly resistant to any microbial action and decomposes at a slower rate called?
3. What is the percolation of the soluble substances formed due to decomposition called?
4. Which are the organisms called those who are responsible for the break down complex organic matter into inorganic substances?
5. Along with oxygen what are the other components decomposition depend on?
6. What environment is unfavorable for the process of decomposition?
7. Which organism is said to be a farmer’s friend?
8. What is the process of break down complex organic matter into inorganic substances called?
9. At what rate does decomposition occur when detritus is rich in lignin and chitin?
10. At what rate does decomposition occur when detritus is rich in nitrogen and sugars?
11. Which substances are formed along with humus due to the decomposition process?
12. What environment is favorable for the process of decomposition?
13. Which of the following is an example of detritivore?
14. How many steps are involved in the process of decomposition?
15. Which substances are formed along with humus due to the decomposition process?
16. What does decomposition depend on?
17. What are the complex organic remains such as dead animal remains, dead plant remains, and fecal matter called?
18. What does decomposition depend on?
19. What is the dark amorphous organic matter rich in cellulose and lignin that is highly resistant to any microbial action and decomposes at a slower rate called?
20. Which organisms carry out the fragmentation of detritus?
21. What is the percolation of the soluble substances formed due to decomposition called?

⚡ Recently practiced quizzes in this topic
Live quiz activity
Class 12 Biology Practice Test: Evolution - Evidences for Evolution Class 12 Biology Practice Test: Molecular Basis of Inheritance - DNA Fingerprinting Class 12 Biology Practice Test: Molecular Basis of Inheritance - Methodologies of HGP Class 12 Biology Practice Test: Principles of Inheritance and Variation - Mendel's Laws of Inheritance MCQs for Human Reproduction Class 12 Biology Practice Test: Environmental Issues - Radioactive Wastes Class 12 Biology Practice Test: Molecular Basis of Inheritance - The Machinery and the Enzymes for Replication of DNA Class 12 Biology Practice Test: Organisms and Populations - Population Growth Class 12 Biology Practice Test: Biodiversity and Conservation - Importance of Species Diversity to the Ecosystem Class 12 Biology Practice Test: Molecular Basis of Inheritance - Lac Operon
 
❤ If you liked Fatskills, consider supporting us by checking out The Life Manuals You Never Got.

🌈  Our mission is to help improve your scores in any subject and exam withonline quizzes, practice tests, study guides, & advice for students. Since 2018.
About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | OSHA Basics Quiz | What Should We Know?
Privacy | Terms |
Without work one finishes nothing. - Ralph Waldo Emerson
© 2026 Fatskills.com

All trademarks, logos and brand names are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.