Correct Answer: A. the condition of Jerusalem was deplorable

Correct Answer: A. both feed on fishes

Correct Answer: A. neutron

Explanation

The correct answer is A. neutron.

Nuclear fission in a nuclear reactor is initiated when a neutron strikes a heavy, unstable atomic nucleus (like Uranium-235 or Plutonium-239), causing it to split into smaller nuclei and release more neutrons and a large amount of energy. These newly released neutrons can then go on to strike other fissile nuclei, creating a chain reaction.

Correct Answer: B. Zakah al fitr

Correct Answer: A. I and II

Correct Answer: A. base

Correct Answer: D. chewing , sucking and piercing

Explanation

(a) Different methods used in Vegetative Propagation are:

(i) Use of modified underground sterns e.g. cocoyam, corn, sucker, etc.

(ii) Cutting of stem with two or three nodes and buds, e.g. cassava, croton, hibiscus, Ixora (sweet potato)

(iii) Flesh leaves e.g. onion, Bryophyllum/ bubuks

(iv)Budding: a dormant bud from one plant/ scion, e.g., citrus, mango.

(v)Grafting, where part of one plant is joined to another of the same or related species, e.g., citrus,mango.

(vi)Layering: A branch close to the soil is bent so that part of the branch touches the soil. The end of the branch is then tied to a firm support. A ring of bark has to be removed from the part of the branch touching the soil while a slit is made half way through the branch. Then this part has to be pushed below the soil and cover with soil while a heavy object is placed on the heap of the soil to weigh it down, e.g., Bougainvillea, Rose plant (sp) cocoa, coffee.

(vii) Marcoting, e.g. mango, lemon (citrus), Rose (Rosa sp)

(b)(i) Advantages of Vegetative propagation are:

• young plant uses food reserves of the parent as it becomes established or easily established.
• Growth in young plant is rapid since there is no resting or lag period
• Only one parent is needed
• desirable characters are retained
• offspring is identical to parent
• offspring matures more rapidly
• are less susceptible to adverse weather conditions
• plants that do not produce seeds can only be [propagated vegetatively)

(ii) Disadvantages of vegetative propagation are:

• No new varieties are produced; no mixing of characters
• offspring and parents compete for light and nutrients since many individuals occupy a limited area of land
• overcrowding; reduces resistance to disease
• reduces resistance to changes in climate / adaptation to environment.
• colonisation of new localities unlikely, since offspring is always produced close to parent plant
• diseases of parents will be transmitted to offspring
• undesirable features are easily transmitted to offspring.

Correct Answer: C. Jewish rites of purification

Explanation

(a)(i)

(ii)

(b)(i) Those who scored less and equal to 32 marks = 75

Those who scored greater and equal to 74 = 508

Therefore those that scored between 32 and 74 = 508 - 75 = 433.

(ii) 18% of 550 = 99

18% failed, the number that passed = 550 - 99 = 451.

(iii) 8% passed with distinction, so 92% did not get distinction.

92% of 550 = 506.

Lowest mark for distinction = 74.