Which one of the following taxonomic groups contains the greatest number of organisms?

When carbon dioxide gas passes through limewater, the limewater:

The main metal in tin cans used to preserve food is:

Which one of the following lists only differences between aerobic respiration and anaerobic respiration?

In a school of 910 pupils, ³/₇ are boys and ²/₅ of the boys wear glasses. How many boys wear glasses?

In the eye, rays of light are focussed on the retina by being refracted at:

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:

All of the following devices are commonly used non-impact printers EXCEPT __________.

__________ are used in specialized fields such as engineering and drafting for outputting large-format drawings.

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

To which category of software does Microsoft Works belong?

Removal of forests may cause all of the following EXCEPT

Hormonal methods of contraception work by:

Difficulty faced at home and the hope of a better life in town BEST illustrate the effect of

The water authority charges $10.00 per month for the meter rent, $2.50 for the first 1 000 litres and $0.10 for each additional 100 litres. What is the total bill for 2 500 litres used in one month?

Choose the ONE underlined part A, B or C that is inappropriate. If the sentence is acceptable as it stands, choose D.

June prefers to lie in bed not wanting to go to school nor does any work.

Osmosis is:

If p * q = pq² , then 2 * 3 =

The expression a² + b² is equivalent to

The average of a set of numbers reduces from 14 to 11 when the number 35 is removed. How many numbers were in the original set?