NCERT Class 9 Skill Education MCQ Chapter 4 Additional Vocations

NCERT Class 9 Skill Education MCQ Chapter 4 Additional Vocations English Medium As Per New Syllabus. to each chapter is provided in the list so that you can easily browse through different chapters NCERT Class 9 Skill Education MCQ Chapter 4 Additional Vocations and select need one. NCERT Class 9 Skill Education MCQ Chapter 4 Additional Vocations Download PDF. NCERT Class 9 Skill Education Objective Type Solutions.

NCERT Class 9 Skill Education MCQ Chapter 4 Additional Vocations

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. CBSE Class 9 Skill Education Multiple Choice Question English Medium are part of All Subject Solutions. Here we have given NCERT Class 9 Skill Education MCQs, CBSE Class 9 Skill Education Objective Type Notes for All Chapters, You can practice these here.

Additional Vocations

Chapter: 4

MCQ

1. What do mushrooms grow from instead of seeds?

(a) Roots.

(b) Spores.

(c) Cuttings.

(d) Leaves.

Ans: (b) Spores.

2. What is the root-like network that spreads in the mushroom substrate called?

(a) Spawn.

(b) Hyphae.

(c) Mycelium.

(d) Compost.

Ans: (c) Mycelium.

3. What is the process of cleaning and removing germs from the growth medium called?

(a) Inoculation.

(b) Incubation.

(c) Pasteurisation.

(d) Sterilisation.

Ansr: (d) Sterilisation.

4. Which of the following is used as seed material for mushroom growth?

(a) Gypsum.

(b) Substrate.

(c) Spawn.

(d) Bran.

Ans: (c) Spawn.

5. What is the ideal temperature range for mushroom cultivation?

(a) 15–20°C

(b) 25–30°C

(c) 30–35°C

(d) 35–40°C

Ans: (b) 25–30°C.

6. What humidity level is required for mushroom growth?

(a) 50–60%

(b) 60–70%

(c) 70–80%

(d) 80–90%

Ans: (d) 80–90%.

7. At what temperature should harvested mushrooms be stored?

(a) 0–2°C

(b) 4–8°C

(c) 10–15°C

(d) 20–25°C

Ans: (b) 4–8°C.

8. Aquaponics naturally integrates which two farming methods?

(a) Agriculture and poultry.

(b) Aquaculture and hydroponics.

(c) Pisciculture and agriculture.

(d) Hydroponics and mushroom cultivation.

Ans: (b) Aquaculture and hydroponics.

9. In an aquaponics system, what converts fish waste into nutrients for plants?

(a) Nitrogen cycle.

(b) Water cycle.

(c) Carbon cycle.

(d) Oxygen cycle.

Ans: (a) Nitrogen cycle.

10. What consists of beneficial bacteria that purify the water in aquaponics?

(a) Grow beds.

(b) Timer switch.

(c) Biofilter.

(d) Aerator.

Ans: (c) Biofilter.

11. Which material is used as grow media to support roots in aquaponics?

(a) Sand.

(b) Soil.

(c) Gravel or clay pellets.

(d) Sawdust.

Ans: (c) Gravel or clay pellets.

12. What equipment is used to automate pump cycles in aquaponics?

(a) Aerator.

(b) Water testing kit.

(c) Biofilter.

(d) Timer switch.

Ans: (d) Timer switch.

13. What is the ideal pH balance for water in an aquaponics system?

(a) Highly acidic.

(b) Slightly acidic to neutral.

(c) Highly alkaline.

(d) Moderately alkaline.

Ans: (b) Slightly acidic to neutral.

14. What is the purpose of aeration in fish farming?

(a) To add carbon dioxide.

(b) To add air or oxygen to the water.

(c) To remove solid waste.

(d) To cool down the water.

Ans: (b) To add air or oxygen to the water.

15. What are tiny floating plants and animals that serve as natural fish food?

(a) Spawn.

(b) Plankton.

(c) Mycelium.

(d) Juveniles.

Ans: (b) Plankton.