The diagram below represents the short-run position of a monopolist. The profit-maximizing output is

• A. Q3
• B. Q4
• C. Q1
• D. Q2

Animals store carbohydrate mainly as

• a) Fats
• b) Glycogen
• c) Minerals
• d) Starch

Abba offers 5% cash discount on goods worth N10 000, The discount allowed account is to be?

• A. debited with N10 000
• B. credited with N10 000
• C. debited with N500
• D. credited with N500

The density P of a spherical ball of diameter d and mass m is given by

• A. P = \(\frac{3m}{4 \pi d^3}\)
• B. p = 4\(\pi md^3\)
• C. p = \(\frac{6m}{\pi d^3}\)
• D. p = \(\frac{3m}{2 \pi d^3}\)

A certain radioactive source emits radiations that were found to be deflected by both magnetic and electric fields. The radiations are

• A. beta rays
• B. gamma rays
• C. x-rays
• D. ultrar-violet rays

The primary structure responsible for pumping blood for circulation through the mammalian circulatory systems is the

• A) Veins
• B) Right auricle
• C) Arteries
• D) Left ventricle

Which of the following structures is not an organ of the disgestive system?

• A. Oesophagus
• B. Pancreas
• C. Stomach
• D. Kidney

Which of the following is the most important source of the history of the Hausa states?

• A. Tarikh-as Sudan.
• B. The European account.
• C. The Kano Chronicle.
• D. The Arab traders

Sodium metal is always kept under oil because it

• A. Readily reacts with water
• B. Is reduced by atmospheric nitrogen
• C. Reacts vigorously on exposure to air
• D. Reacts with oxygen and carbon (IV) oxide

Read the passage below and answer the question

Stella had to do her midweek shopping. There were four people before her in the queue. She watched the blond at the counter striking feverishly away at the numbers on the cold, light-flickering machine. There seemed to be a raging war between two mechanical contraptions, one, robot-like and the other stationary, but able to respond to the extent of punching, by sharp flickers of red light. It was an all consuming battle,as a swift hand positioned the price label of the ceaseless flow of item on the coneyor belt and the right delivered the punches. The intending owners were more unnoticed onlookers. Anyway, there is a belated recognition of them in ''thank you, call again balance sheet. '' It's all so mechanical, she thought. I mean, any creature-baboon, extraterrestial being or anything - could as well receive the same treatment as long as the conditions are met- ''bring to the counter, labelled items from the shelves.''Where is the human touch? She wondered.

''Where is the human touch?'' conveys an impression of

• A. disappointment
• B. expectation
• C. discontent
• D. indifference