If the relative atomic mass (RAM) = 1 for hydrogen and 16 for oxygen, the formula mass for H₂O₂ is:

Tooth decay can be caused by:

Which of the following is NOT a way in which infectious diseases can be transmitted?

The speed of an ink-jet printer is measured by the number of __________ it can print.

To which category of software does Microsoft Works belong?

Which one of the following gases is considerably heavier than air?

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

There is hardly a point to our knocking as no one is not at home.

All of the following are features of a gas exchange surface EXCEPT for:

Which of the following routes taken by blood in the body is correct?

A man's regular pay is $3 per hour up to 40 hours. Overtime is twice the payment for regular time. If he was paid $168, how many hours overtime did he work?

Many leaves are adapted to photosynthesise effectively by having:

The pie chart above shows how a student used 10 hours per week for studying English (E), Mathematics (M), French (F) and Geography (G), The amount of hours spent studying French is approximately

All of these materials are used in a blast furnace EXCEPT for:

Adding mineral water to anhydrous copper sulphate turns it:

When potassium burns in chlorine, the material that is oxidised is called:

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

Globalization is characterized by all of the following EXCEPT the

The equation of the line which passes through the point (0, 2) and has a gradient of ¹/₃ is

Biological catalysts in yeast are called:

A salt that contains water of crystallisation is: