Correct Answer: B. giveng his daughter in marriage to the person

Explanation

(a)(i) This can be defined as the number of atoms or molecules in one mole of a substance which is equal to 6.02 x 10\(^{23}\)

(ii) Mass/m.m = no. of molecules / Avogadro's number

(2.30 / m.m) x (3.01x10\(^{22}\) / 6.02 x 10\(^{23}\))

m.m = (2.30 x 6.02 x 10\(^{23}\)) / 3.01 x 10\(^{22}\)

m.m = 46g / mol

\(\therefore\) 14+('16 x 2)

14 + 32 = 46g /mol

\(\therefore\) No\(_{2}\)

(b)(i) I. Two layers are formed / no reaction / immiscible

II. there is a reaction / hydrolysis with steamy fumes /white fumes

(ii) The reaction occurs by interaction of the tones pair of electrons of water binding to the central atom (silicon or carbon) / attaching to the central atom In silicon, the 3p - orbital is available to accept the pairs of electrons but in carbon, there is no vacant orbitals for bonding.

OR

Water is polar hence the reaction with SiCI\(_{4}\). But CCI\(_{4}\) is non-polar hence there is no reaction

Explanation

(a) P = TU\(_3\) = TU\(_2\) + MU\(_3\) = 19 + 6 = 25

Q = TU\(_6\) = TU\(_5\) + TU\(_6\) = 31 + 0 = 31

R = MU2 = \(\frac{TU_2 - TU_1}{2 - 1}\) = \(\frac{19 - 10}{1}\) = 9

S = MU5 = \(\frac{TU_5 - TU_4}{5 - 4}\) = \(\frac{31 - 30}{1}\) = 1

(b) The consumer attains equilibrium at the 5th level of consumption.

For one commodity, the consumer attains equilibrium when MU = Price.

At the 5th level, MU = M1 and the price is given as $1.00

(c)

(d) The law of diminishing marginal utility states thats a consumer consumes more units of a commodity, the satisfaction derived from each additional unit of the commodity diminishes.

Correct Answer: B. realistic

Correct Answer: D. as a Jew, he avoided calling the name of God

Correct Answer: C. personification

Correct Answer: D. improved medical care

Explanation

10, Adeniran Street,

Aguda,

Ikeja, Lagos.

22 May, 2006.

The Chairman,

P. T.A.

Model College,

Ogba, Lagos.

Dear Sir,

HOW TO IMPROVE LEARNING ENVIRONMENT IN MY SCHOOL

I have watched with increasing dismay the steady decline in the general learning environment in my school. this I attribute to several factors. While enumerating some of these factors, I would like to suggest three key areas where the parent Teachers Association (PTA) can step in to arrest this decline and improve the learning environment in the school.

Over the past few years, the school has experienced a steady deterioration in its infrastructure. Some classrooms in the school have no ceilings or windows such that the students are at the mercy of the weather When the sun is up and the weather is hot this beats down on the students because there is no ceiling and no fans. Same goes for the rainy periods when students are often drenched from the rain while in their classes due to windowless classrooms. This makes learning very difficult as concentration is very low in such situations.

Thus, I want to suggest that the PTA collaborates with the school authorities to upgrade the school's infrastructure. The dilapidated school buildings should be refurbished. Also, the school library and laboratories need to be upgraded and brought up to date. This will improve the quality of learning and teaching in the school.

Despite the decaying infrastructure of the school, school fees and other charges have continued to increase. This has led to increasing withdrawals from the school. The school is also no longer attracting the type of quality enrollment as others in its class because of the infrastructure decay and exorbitant school fees and other charges. This can be corrected if the school will review its fees, and this I know could be achieved if the parents work with the teachers in that direction. The PTA can also institute a scholarship scheme to help attract brilliant and serious students to the school. This will no doubt create a better learning environment as there will be a healthy rivalry among students, which will help boost the quality of learning.

I have also noticed that there is a dearth of qualified and quality teachers. This is due to the fact that teachers in the school are overworked and underpaid, leading to a high rate of turnover for the teaching staff This has affected the learning and education of students. Parents can work with the school authorities to improve the teachers' welfare and general working conditions to attract and retain quality teaching staff.

As the saying goes; all work and no play makes Jack a dull boy. This is quite true because in the past, our school used to be among the best in the state in academics as well as in sports. This is no longer the case as over the years sports and sporting facilities have been totally neglected. I want to suggest that parents work with teachers to revive this twin objective of the school academics and sports. The sporting facilities in the school should be refurbished and the moribund inter-house sports revived. The PTA should also purchase a bus for sporting purposes.

I am sure if these three key areas are looked into the school will be the better for it.

Yours faithfully,

Bambara Bello

Explanation

(a) Outline Length = 12.2cm; Outline Breadth = 12.2cm

(i) Full Length of River Oshin

(ii) Watershed-lgporin Hill

(iii) Marafa Settlement

(iv) The ridge east of the main road

(b) Scale - 1:50,000 Distance on map {Onikoko to Alade} = 16cm,

Accept a range of +0.2cm ;

Actual distance =50000 x 16km

100,000

(c)(i) Farming/scattered cultivation; Fishing (rivers); Grazing (Savanna/orchard bush); Teaching (school); Transportation (roads); Occupation.

(ii) Physical features: Rivers, Isolated braided river, Light forest, Scrub, Ridge, Orchard bush.

(iii) Human features:Roads (major, minor, secondary, etc), Settlements (built up areas, isolated compounds, etc), Scattered cultivation, School, Footpaths, Bridges.

Correct Answer: A. metaphor