Plant stems grow towards a light source.This is an example of:

A home computer system is equipped with a memory card reader, floppy disk drive, a DVD drive and an internal hard disk, The LEAST an MOST portable media that can be used with this computer are __________.

The following figures are taken from a manufacturing account.


The cost of tie year's production of finished goods is

Sweating can help to cool the body. This cooling is achieved mainly by:

Which one of the following statements about constructive interference is NOT true?

Two separate forces are acting on a bar to cause it to rotate clockwise. One force is 20 N, at a distance of 3 m out from the pivot; the second force, 2 m further out, is 10 N. Their combined moment is:

On May 1, a petty cashier received Imprest of $150. During the month, petty cash expenses amounted to $77.00 and $2.00 was received from a member of staff who made a personal telephone call. How much cash is needed to restore the imprest on 31 May?

The lowest and the highest frequencies a typical young person′s ear can detect are approximately:

Which one of the following chemicals is used to test for starch?

The number of kilos in 1 metric tonne is:

When gas particles spread out we call it:

A cell in an embryo divides by mitosis three times in succession. How many cells will be formed from these divisions?

Given that a and b are integers, which of the following is not necessarily an integer?

When a metal wire carries an electric current, charges flow through it.The moving charges are:

The shaded area in the Venn diagram above represents

Potassium reacts quickly with water but we do not use it with acids because:

Which one of the following is NOT a function of the placenta?

A man bought a shirt at a sale. He saves $30 on the normal price when he paid $120 for the shirt. What was the percentage discount on the shirt?

Which one of the following foods contains the most energy per 100 g?

The following are all minerals EXCEPT for: