Explanation

Merits of two-party system:

(i)Two-party system promotes the political stability of a country.

(ii) It produces very strong opposition.

(iii) It presents two alternatives to the electorate during election.

(iv) It makes the government in power act very responsibly knowing that if it fails, the people could reject it at the next election.

(v) It is difficult for the government to degenerate into dictatorship under a two-party system.

(vi) It promotes popular government by ensuring that the party or candidate who wins an election is always the most popular candidate.

Demerits of two-party system: (i) Two-party system leads to a division of the society into two opposing camps.

(ii) It sometimes breeds irresponsible opposition.

(iii) It may not allow the development and growth of minor parties.

(iv) Human resources are sometimes wasted on unnecessary partisan squabbles instead of on useful national issues.

(v) Party loyalty could be placed above national loyalty.

(vi) It sometimes leads to victimization of political opponents.

Correct Answer: B. easy to amend

Explanation

\(\stackrel\frown{AOB} = \stackrel\frown{BOC} = \stackrel\frown{COD} = \stackrel\frown{DOE} = 60°\)

In \(\Delta AOB\), Area of sector = \(\frac{60}{360} \times \frac{22}{7} \times 7^{2}\)

= \(25.67 cm^{2}\)

Area of triangle AOB = \(\frac{1}{2} \times \7 \times 7 \times \sin 60\)

= \(24.5 \times 0.866\)

= \(21.22 cm^{2}\)

Area of the 4 sectors = \(4 \times 25.67 = 102.68 cm^{2}\)

Area of the 4 triangles = \(4 \times 21.22 = 84.88 cm^{2}\)

Area of the shaded portion = \((102.68 - 84.88)cm^{2}\)

= \(17.80 cm^{2}\)

\(\approxeq 18 cm^{2}\)

Correct Answer: B. ₦36,320

Correct Answer: A. 2.72

Explanation

The first five prime numbers are 2, 3, 5, 7 and 11

M.D = \(\frac {\sum (x - x?)}{n}\)

n = 5

\(x? = \frac {\sum x}{n} = \frac {2 + 3 + 5 + 7 + 11}{5} = \frac {28}{5} = 5.6\)

M.D = \(\frac {(2 - 5.6) + (3 - 5.6) + (5 - 5.6) + (7 - 5.6) + (11 - 5.6)}{5}\)

= \(\frac {(-3.6) + (-2.6) + (-0.6) + (1.4) + (5.4)}{5} = \frac {13.6}{5}\)

Take the absolute value of all numbers in bracket

= \(\frac {3.6 + 2.6 + 0.6 + 1.4 + 5.4}{5} = \frac {13.6}{5}\)

\(\therefore M.D = 2.72\)

Correct Answer: C. S

Correct Answer: C. meanders

Explanation

(a) Adaptive features of climbing animals are:

(a) There is presence of prehensile tails, (e.g. monkey

(b) They have opposable digits e.g. monkey

(c) They possess sticky adhesive discs on fingers e.g. geckos

(d) They possess grasping scales e.g. snakes

(e) They have grasping pads e.g. tree frongs

(f) They have long, sharp claws for climbing e.g. squirrels.

(b) Important uses of water to organisms in rain forest are:

(a) It is also essential for photosynthesis.

(b) It helps to maintain the body temperature of organisms.

(c) It is essential for plant turgidity/ mechanical support.

(d) It helps in metabolism of organisms.

(e) It provides moisture necessary for microbial activity.

(f) It provides moisture necessary for burrowing animals.

(g) It is also essential for translocation and transpiration.

(h) It is also essential for movement and survival of aquatic animal.

(i) It is important for plant and animal growth or germination of seeds.

(c)The instrument used for measurement of temperature is the thermometer. The bulb of the instrument whose temperature is to be measured is suspended in the medium for about one minute to five minutes while the level of the mercury or liquid in the stem is recorded. About three readings are recorded and the average found.

(d)(i) The following scientists have contributed to the study of solutions:

(a) Larmack

(b) Charles Darwin

(c) De'Vries

(d) A.R. Wallace (

ii) Evidence in support of evolution are:

(a) Evidence from embryology

(b) Evidence from Geographical distribution

(c) Physiological evidence

(d) Evidence of comparative morphology.

(e) Evidence of vestigial organs

(f) Evidence from cytology or chromosome doubling

(g) Evidence from fossil records

(h) Evidence form comparative anatomy.

Correct Answer: C. Uncredited cheque

Explanation

Uncredited cheque have to be less when starting with balance as per cashbook not add because the cheque are yet to be credited by the bank

Correct Answer: A. Carbon(IV)oxide