Which of the following reasons BEST explains why African rivers are not very navigable?

• A. Low volume of water in the rivers
• B. Most of the rivers are too short
• C. Most of the river courses are interrupted by rapids
• D. The rivers are mostly seasonal

In Nigeria, the ministry in charge of registering trade association is that of

• A. Culture and tourism
• B. Finance
• C. Industries
• D. Commerce

Which of the following does not influence rock weathering?

• A. water
• B. carbonation
• C. roots
• D. ammonification

Complete each of the following sentences by choosing the option that most suitably fills the space; In order to carry out necessary examination the dead body was ....

• A. extracted
• B. extradited
• C. exiled
• D. exhumed

P varies jointly as m and u, and varies inversely as q. Given that p = 4, m = 3 and u = 2 and q = 1, find the value of p when m = 6, u = 4 and q =8/5

• A. 12⁸/₅
• B. 15
• C. 10
• D. 28⁸/₅

A plateau that is enclosed by two fold mountains is called

• A. an intermont plateau
• B. a lava plateau
• C. a volcanic plateau
• D. a dissected plateau

Which of the following statements is not true?

• A. Musical notes consist of the combination of sounds of regular frequency
• B. The combination of overtones produced by an instrument determines the quality of the sound
• C. the loudness of sound is determined by its frequency
• D. the pitch of a note depends on the frequency of vibration of the source

The 2011, 12th National Sport Festival took place at

• (a)Uyo
• (b) Asaba
• (c) Enugu
• (d) Portharcourt

(a) The nth term of a sequence is given by \(T_{n} = 4T_{n - 1} - 3\). If twice the third term is five times the second term, find the first three terms of the sequence.

(b) Given that \(\begin{pmatrix} 2 & 0 & 1 \\ 5 & -3 & 1 \\ 0 & 4 & 6 \end{pmatrix} \begin{pmatrix} 1 \\ m \\ r \end{pmatrix} = \begin{pmatrix} k \\ 2 \\ 26 \end{pmatrix}\), find the values of the constants k, m and r.

The drawer of a bill of exchange which is not discount is also the?

• A. 30 days
• B. 2months
• C. 6 months
• D. 12 months