The monomer used to make poly (propene) is called:

To remove limescale from a tap you need:

Profits in the partnership of Bess, Bill and Bob are shared in the ratio 1 : 2 : 3. If Bill's share of the profits is $300, what is Bob's share?

Which conclusion can be drawn from the table?

When rotated through 90° about the origin in a clockwise direction, the image of the point (3, 1) is

The Haber Process is used to make:

Instruction: Choose from the four options the word or pair of words which BEST completes the meaning of the sentence.

To conceal his true activities, the spy quickly ............ a plausible excuse for his presence there.

If U = {1, 2, 3, . . . 10 } and S = { 4, 5, 6, 7, 8 }, then S ' =

Which of the following is a subset of {b, c, d}?

Any solution with a pH below 7 must be:

Plants make growth movements in response to all of the following stimuli EXCEPT for:

The units we use for heat given out by a reaction are:

The bases and heights of a cylinder and a cone are the same. The volume of the cylinder is V cm³. What is the volume of the cone in cm³ ?

Photosynthesis is important because:

Which of the following does NOT contribute to unemployment?

The two common varieties of chlorine atoms are called:

A circular hole with diameter 6 cm is cut out of a circular piece of card with a diameter of 12 cm. The area of the remaining card, in cm² , is

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

Which of the following statements about aerobic respiration is correct?

Most plant and animal cells contain: