Correct Answer: A. France and Britain

Correct Answer: A. non-legislation bodies

Correct Answer: B. manifest his divinity

Correct Answer: A. accounting ratios

Explanation

Accounting ratio is the comparison of two or more financial data which are used for analyzing the financial statements of companies. It is an effective tool used by the shareholders, creditors and all kinds of stakeholders to understand the profitability, strength and financial status of companies.

Correct Answer: D.s \(\alpha\) t\(^{2}\)

Explanation

Mathematically;  S = vt + \(\frac{1}{2}\) at\(^2\)

: S ∝ t\(^2\)

Correct Answer: A. Anambra

Correct Answer: C. convince Pharaoh of Yahweh's supremacy

Explanation

(a) (i) The law of independent assortment states that each member of alleles or contracting character may combine randomly with either member of another pair.

(ii) Findings of Mendel's experiment involving white and red flowered pea plants:-On crossing white and red flowered pea plants, he obtained all red - flowered offspring, but on self-.crossing each of these red- flowered plants he obtained mixtures of red flowered and white flowered plants in the ratio of 3:1 (¾ red / ¼ white flowered).

(iii)Illustrations: Key for parental genotype e.g R for red, r for white

(b) Blood grouping in man is determined by three alternative genes (alleles) A, B, and 0. A person can only possess two (alleles) of the genes on a pair of homologous chromosomes. 0 is recessive to both A and B, hence it is possible to have blood group A and AA (homozygous) and AO (heterozygous) and group B as BB or BO. However, group 0 can only exist genotypically as 00 in the homozygous recessive state.

Explanation

(a)(i) Resonance is a phenomenon which occurs whenever a body is set in oscillation at its own natural frequency as a result of impulses received from another vibrating body, vibrating with the same frequency.

(ii) Examples of resonance are:

(1) Loud sound from vibrating prongs of a tuning fork.

(2) Bridge vibrating under uniform matching of soldiers.

(3) Repeated jumping of a diver at the free end of a diving board causes the board to resonate.

(4) Rattling of car engine at high speed causing vibrating of the body of the car. (5) X\(_{c}\) equals X\(_L\) in an L-C-R series circuit for tuning a radio set.

(iii)

(b) The following properties will change in speed and wavelength.

(c)

(d) \(\frac{1}{u} + \frac{1}{v} = \frac{1}{f}\)

\(\frac{1}{v} = \frac{1}{f} - \frac{1}{u} = \frac{1}{-18} - \frac{1}{90}\)

= \(\frac{-5 -1}{90}\)

v = -15m

M = \(\frac{u}{v} = \frac{h_i}{h_o}\)

\(h_o = \frac{hi \times u}{v} = \frac{1 \times 90}{1.5}\)

= 6.0 m

Correct Answer: D. nationalism