The following are all natural materials EXCEPT for:

Hormonal methods of contraception work by:

In which of the following countries is proportional representation practised?

Which of the following conditions is NOT caused by a poor diet?

You never find native magnesium because:

The blood cells that engulf invading microorganisms are:

Simple sugars are called monosaccharides because:

All of these are alkenes EXCEPT for:

In electrolysis the anode is the:

Banks and other financial institutions utilize __________ technology that automatically verifies the identity of callers wishing to access their accounts.

In the diagram, B is due north of A; C is east of B, and AB = BC.

The perimeter of a rectangle is 26 cm. The rectangle is converted to a square by tripling the width and taking a quarter of the length. What is the perimeter of the resulting square?

The pH scale runs from 1 to:

The state symbol for a solution in water is:

3 ⁴/₅ expressed as a decimal is

The marked price of a stove was $520. A worker bought the stove on hire-purchase by making a down payment of $100, and twelve monthly payments of $40 each.
How much could she have saved if she had bought the stove for the marked price?

One Faraday represents:

Powders react faster than lumps because they have:

The two common varieties of chlorine atoms are called:

In metals, the particles forming the structure are all: