This question is based on Khadijat Abubakar Jalli's novel, The Life Changer

The book described Talle as a?

• A. The precious child
• B. The quiet one
• C. The friendly child
• D. the holy child

Which of the following livestock diseases is transmitted by ticks?

• A. red water
• B. coccidiosis
• C. aspergillosis
• D. trypanosomiasis

(a)(i) What is an echo? (ii) State two useful applications of echoes.

(iii) Why are the walls, floors and ceilings of a recording studio heavily padded?

(b)(i) Explain timbre and overtones.

(ii) What is resonance?

(c) As a ship approaches a cliff, its siren is sounded and the echo is heard in the ship after 12 seconds. 2.1 minutes later the siren was sounded again and the echo was heard 8 seconds later. If the speed of sound in air is 340 ms\(^{-1}\), calculate the velocity at which the ship was approaching the cliff.

At a co-efficient of price elasticity of supply of 0.5, supply is

• A. perfectly inelastic
• B. inelastic
• C. perfectly elastic
• D. elastic

The ordinary shareholders enjoy the following right except the right to

• A. receive dividends at a predetermined rate
• B. vote at annual general meetings
• C. elect the board of directors
• D. participate in additional issues of shares

A serious disadvantage of complexity in higher organisms is

• A. a high demand for food and energy
• B. ability to function in many specialized roles
• C. little amount of energy dissipated in functioning
• D. specialization of parts of the body

The sequence of the one-way gaseous exchange mechanism in a fish is

• A. operculum → gills → mouth
• B. gills → operculum → mouth
• C. mouth → operculum → gils
• D. mouth → gills → operculum

This question is based on William Shakespeare's Romeo's and Juliet.

Romeo's death becomes inevitable because

• A. Friar Lawrence's letter is not delivered
• B. Juliet is married to Paris
• C. Romeo kills Tybailt in a duel
• D. Juliet has committed suicide

The area of a parallelogram is 513cm2 and the height is 19cm. Calculate the base.

• A. 13.5cm
• B. 25cm
• C. 27cm
• D. 54cm

Usain Bolt is from ____

• A. Poland
• B. Chile
• C. Jamaica
• D. Germany