When an ebolite rod is rubbed with fur, it has

• A. no charge at all
• B. a negative charge
• C. a positive charge
• D. negative and positive charges

Mrs Kebeh stands at a distance of 110 m away from a building of vertical height 58 m. If Kebeh is 2 m tall, find the angle of elevation of the top of the building from her eye.

• A. \(27^0\)
• B. \(28^0\)
• C. \(20^0\)
• D. \(26^0\)

Correct Answer: A. \(27^0\)

Explanation

Tan\(\theta = \frac{opp}{adj}\)

Tan\(\theta = \frac{56}{110}\)

\(\theta = tan^1(0.5091)\)

therefore, \(\theta\) = 27° ( to the nearest degree)

(a) Define surface tension

(b) State two methods by which the surface tension of a liquid can be reduced

Read the extract and answer the question

X : Tis gone will not answer.

Y : How now....! You tremble and look pale;

Is not this something more than fantasy?

What think you on't?

Z : Before my God. I might not this believe

Without the sensible and true avouch

Of mine own eyes.

(Act One, Scene I, lines 52-58)

Speaker Y is

• A. Bernado
• B. Francisco
• C. Polonius
• D. Rosencrantz

What did Gehazi deceitfully receive from Naaman?

• A. two talents of silver and two festal garments
• B. two talents silver and two shekels of gold
• C. two festal garments and two talents of gold
• D. two thousand shekels and two festal garments

A direct service is rendered by

• A. State counsels
• B. Civil servants
• C. Police
• D. Family doctor

Which of the following pairs of properties of alkali metals decreases down the group?

• A. First ionization energy and reactivity
• B. melting point and atomic radius
• C. Reactivity and electronegativity
• D. First ionization energy and melting point

Which of the following is not associated with human intervention?

• A. mining
• B. construction
• C. rainfall
• D. urbanization

The diagram below illustrates the reproductive parts of livestock.Study it carefully and answer the questions that follow.

(a) Name the parts labelledI,II, III, IV, Vand VI.

(b) Stateone function ofeach of the parts labelledI,II, III, IV, Vand VI.

(c) To prevent indiscriminate mating in the herd, a farmer decided to carry out a management practice to alter the functioning of the parts illustrated above.

(i) Name the management practice.

(ii) Name thetwo main parts of the illustrated diagram that would be ofutmost benefit to the farmer in carrying out the management practice named in (c)(i).

Neither Bola nor her brothers ___ crying