Correct Answer: C. price, product, place and promotion

Correct Answer: D. A, O, A

Correct Answer: B. by the frequency of the press releases of pressure groups

Correct Answer: C. influencing leading men in the city to drive them out

Correct Answer: A. a dense medium to a less dense medium

Correct Answer: D. agreed the emigrate to Yathrib

Correct Answer: C) oxidized to oxygen

Explanation

In the given reaction, ozone (O\(_{3(g)}\) reacts with hydrogen peroxide (H\(_2\)O\(_{2(l)}\) to produce water (H\(_2\)O\(_{(l)}\) and oxygen gas (O\(_{2(g)}\).

Ozone is a powerful oxidizing agent, which means it can easily lose electrons and cause other substances to gain those electrons. In this reaction, ozone is being converted to oxygen gas, so it is losing electrons and undergoing oxidation. Therefore, option C (oxidized to oxygen) is the correct answer.

Option A, B, and D are incorrect because:

• Displacement is a type of reaction where an element is replaced by another element in a compound, which is not happening in this reaction.
• Decomposition is a type of reaction where a compound breaks down into simpler substances, and although oxygen gas is formed in this reaction, ozone is not simply breaking down; it is undergoing a redox reaction with hydrogen peroxide.
• Reduction is a type of reaction where a substance gains electrons, and in this reaction, ozone is losing electrons, not gaining them.

Correct Answer: B. Martha

Correct Answer: D. ₦26,250:00

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.