During adolescence, boys:

The two common varieties of chlorine atoms are called:

The common name for silicon dioxide is:

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

We could reach the survivors neither by boat or by plane, and so we abandoned our search as futile.

This question refers to the triangle PQR in which angle QPR = 90°, PR = 12 cm and PQ = 5 cm.

The length of QR, in cm, is

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

Demersals are fish that are found:

Democratic control and open members are features of a

If an increase of 20% will change the price of an item to $480, what is the original price of the item?

A typical soil contains mineral particles, humus, water, air and:

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

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

The correct equation for photosynthesis is:

The gas that relights a glowing splint is:

The density of pure water is:

A political campaign is a method used by political parties to

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

While the committee members ............ insults across the floor, the chairman tried in vain to ............ order.

Cooking food improves all of these EXCEPT for:

Veins have valves because

Seeds are dispersed from the parent plant: