Biology 2nd year chapter 26 important Questions

Learn Biology 2nd year chapter 26 important Questions from past papers of Punjab boards. These important Biology 2nd year mcqs, short and long questions are collected by going through different past papers of all Punjab Board Pakistan.

Why are these questions important?

These Questions are taken from past papers of Biology Class 12. These questions are top repeated of in previous papers of Biology 2nd year of all Punjab boards as;

      Bahawalpur Board

      D.G.Khan Board

      Faisalabad Board

      Gujranwala Board

      Lahore Board

      Multan Board

      Rawalpindi Board

Content is created and designed with intense care and diligence. Here is only the most important MCQ, short questions and long questions of Biology 2nd year chapter 26 some major ecosystems.

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You can easily download in pdf format or view Biology 12 chapter mcqs, short questions and long questions  online. You can easily print these files in simple way. Here you find Biology 2nd year chapter 26 some major ecosystems important mcqs, short and long questions. By Preparing these important questions, you will achieve splendid marks in Biology 12. This content is very helpful for weak students and also helpful for those students that are better at Biology 2nd year exam preparation. These Questions are based on the current Biology 2nd year syllabus according to Punjab Textbook Board.

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Generally, students get less time for preparation. If we talk about Biology 2nd year, we need a lot of intensive time to prepare for it. 2nd Year students of face big difficulty while preparation of Biology MCQs, Short & Long questions. Good News! mhbeducator.com offers you, the easiest and smartest way to prepare Biology Class 12 by which students can save their time and will able to prepare Class 12 Biology very fast. Here your are provided Biology 2nd year chapter 26 some major ecosystems MCQs, important short and long questions. For other chapters click the link below the Post. These Questions are based on the current Biology 12 syllabus according to Punjab Textbook Board.

About This Chapter

chapter 26 some major ecosystems of  Biology 2nd year enables the students to learn about climate and climate parameters. Students learn Aquatic or Hydrosphere Ecosystem. Students learn Terrestrial or Lithospheric Ecosystem. Students learn Some Major Ecosystems in Pakistan. This Post "Biology 2nd year chapter 26 important Questions" covers all important mcqs, short and long questions related to important  topics of this chapter.

👉Imp MCQs - Biology Class 12 CH # 26

1. Layering is the characteristics of which ecosystem:

(A) Desert

(B) Grassland

(C) Forest

(D) All of these

(B) Grassland

2. Coniferous forests of high altitude are know as      

(A) Alpine

(B) Boreal

(C) Tundra

(D) Both A & C

(A) Alpine

3. Average rain fall in temperate deciduous forests is     

(A) 750 - 1500 mm

(B) 350 - 500 mm

(C) 650 - 1000 mm

(D) 850 - 1200 mm

(A) 750 - 1500 mm

4. Nutrients tend to be concentrated near the bottom sediments

    

(A) Alpine

(B) Tundra

(C) Desert

(D) Aquatic Ecosystems

(D) Aquatic Ecosystems

5. The productivity of aquatic ecosystem is basically determined by:

(A) Light and sand

(B) Light and mud

(C) Light and nutrients

(D) All of above

(C) Light and nutrients

6. In Sindh, the desert ecosystem is called?

(A) Thar

(B) Thal

(C) Cholistan

(D) None of these

(A) Thar

7. A succulent plant that stores water:

(A) Moss

(B) Cacti

(C) Both

(D) None

(B) Cacti

8. Earth surface is occupied by marine water ? 

(A) 60 %

(B) 70 %

(C) 80 %

(D) 90 %

(B) 70 %

9. Floating plants are known as:

(A) Fungi

(B) Algae

(C) Plankton

(D) Both B & C

(C) Plankton

10. Decomposers and detritus feeders are only living organisms in:

(A) Littoral zone

(B) Profundal zone

(C) Limnetic zone

(D) None of these

(B) Profundal zone

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👉Other Chapters (PDF) of Biology Class 12 Punjab Textbook Board

✅Chapter 15

Homeostasis

✅Chapter 16

Support and Movement

✅Chapter 17

Coordination and Control

✅Chapter 18

Reproduction

✅Chapter 19

Growth and Development

✅Chapter 20

Chromosomes and DNA

✅Chapter 21

Cell Cycle

✅Chapter 22

Variation and Genetics

✅Chapter 23

Biotechnology

✅Chapter 24

Evolution

✅Chapter 25

Ecosystem

✅Chapter 27

Man and his Environment