The sea water thrown up the beaches by the breaking waves is called

• A. backwash
• A. shore
• B. undertow
• C. swash

The only caste in the termite colony whose members can feed themselves are the

• A. workers
• B. reproductives
• C. soldiers
• D. nymphs

Total internal reflection will not occur when light travels from

• A. water to air
• B. water into glass
• C. glass to air
• D. glass into water

Transport, retailing and wholesaling industries rely heavily on

• A. banking
• B. insurance
• C. manufacturing
• D. railway

Which of the following is represented by the above sketch?

• A. y = x² + x - 6
• B. y = x² - x - 6
• C. y = x² - x + 6
• D. y = x² + x + 6

After each of the following sentences, a list of possible interpretations of the sentence is given. Choose the interpretation that you consider most appropriate for each sentence.

We would never have followed his advice if we had known his reputation. This means that we

• A. knew what people said about him so we refused to obey him
• B. trusted him but did not need any advice
• C. followed his advice because we didn't know him
• D. trusted him but did not take his dvice

My father Chastised you with whips, but I will chastise you with scorpion. Who said this?

• A. Rehoboam
• B. Solomon
• C. Absalom
• D. Jeroboam

(a) Give the electrolyte of a named secondary electrochemical cell.

(b) Consider the cell represented as shown below: \(Cu_{(s)}Cu^{2+}_{(aq)}/Zn^{2+}_{(aq)}/Zn{(s)}\)

(i) What does the vertical double stroke represent?

(ii) Which of the metals forms the cathode?

(iii) Name the electrode to which each half-cell should be coupled if the oxidation potential of the half-cells are to be determined.

One on the usefulness of import tariff on Imported goods is the _______?

• A. Encouragement of importation from abroad
• B. Multiplication of foreign goods in local markets
• C. Protection of infant industries
• D. Saving of money in foreign accounts

After registration, a certificate of trading is usually issued to a

• A. partnership
• B. public company
• C. private company
• D. sole proprietorship