Unit notes and practice questions
Everything here is for unit 12 of the Grade 12 Agriculture textbook: what the chapter covers, the short notes, practice questions with their answers, and the lesson video where one exists.
The cards filed under this chapter on the Grade 12 Agriculture page. Open one at a time.
When you use it
Use when configuring shade structures, light exposure, and outdoor acclimation for growing nursery seedlings.
Watch out
Complete shade raises humidity and causes etiolation (spindly, weak stems). Provide partial shade with 14 to 16 hours of light per day, then harden off before transplanting.
Drafted from Grade 12 Agriculture, pages 226-242, then checked twice before it went up
| Nursery Feature | Recommended Specification |
|---|---|
| Ideal nursery shape | Square (reduces boundary fencing and transport distance) |
| Road width | 3 to 5 m |
| Road placement interval | Between every 6 to 10 beds or at bed ends |
| Seedbed width | Around 1 m |
| Seedbed length | 5 to 10 m |
When you use it
Use when designing physical nursery boundaries, transport road networks, and seedbed dimensions.
Watch out
Bed width must not exceed 1 m because wider beds make weeding and hoeing unreachable from the sides.
Drafted from Grade 12 Agriculture, pages 226-242, then checked twice before it went up
When you use it
Use to calculate soil covering depth when planting tree or crop seeds in containers and beds.
Watch out
Do not bury light requiring seeds like lettuce or snapdragons under soil. They must remain on the surface in contact with moist soil.
Drafted from Grade 12 Agriculture, pages 226-242, then checked twice before it went up
10 multiple-choice questions written against this chapter, each with its answer and the reason. Try one before you open the answer.
Question 1
How many life stages does a honey bee pass through during its complete metamorphosis?
Answer: C Four stages
Why
Honey bees undergo complete metamorphosis through four life stages: egg, larva, pupa, and adult.
Question 2
Which caste in a honey bee colony consists of male bees that have no sting?
Answer: B Drone bees
Why
Drones are male bees. They have large eyes, smaller jaws, and no sting.
Question 3
Which traditional Ethiopian fermented beverage uses an estimated 85% of the honey brought to market?
Answer: B Tej
Why
In Ethiopia, over three-fourths (85%) of the total honey brought to market is used for Tej production.
Question 4
Which type of beekeeping uses a single-story long box with sidewalls sloping inward toward the bottom and top bars of fixed width?
Answer: C Transitional system
Why
The transitional system uses a top-bar hive, which is a single-story long box with inward-sloping sidewalls.
Question 5
Which type of honey bee is found in the Southeast Mountain of Bale-Dinsho in Ethiopia?
Answer: A Apis mellifera monticola
Why
According to the textbook, Apis mellifera monticola is found in the Southeast Mountain of Bale-Dinsho.
Question 6
Where are the specialized glands located that worker bees use to secrete wax for comb building?
Answer: A On the underside of their abdomens
Why
Worker bees secrete wax from specialized glands located on the underside of their abdomens.
Question 7
Who invented the practical movable-frame hive in the U.S.A. in 1851?
Answer: C Lorenzo Lorraine Langstroth
Why
The practical movable-frame hive was invented in 1851 by Lorenzo Lorraine Langstroth in the U.S.A.
Question 8
What is a key physical characteristic of the queen bee's sting?
Answer: B It is smooth and curved
Why
The queen bee has a sting that is not barbed, but smooth and curved.
Question 9
According to hive management guidelines, when should a beekeeper remove the queen excluder?
Answer: B Immediately after honey is harvested
Why
The textbook specifies that beekeepers should remove the queen excluder immediately after honey is harvested.
Question 10
Which honey bee type exists specifically in the lowland areas of eastern Ethiopia?
Answer: A Apis mellifera jemenitica
Why
Apis mellifera jemenitica is the honey bee type found in the lowland areas of eastern Ethiopia.
The app holds 23 questions on this unit, marked as you go. These are the first 10.
Unit 12 runs from page 226 to page 234 of the Ministry of Education edition.
Ministry of Education edition, English, 302 pages
Temari turns this chapter into timed practice and marks it as you go, with an AI tutor to explain anything that did not land.
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