In hot conditions the surface blood vessels in the skin undergo vasodilation. This allows:

Which one of the following is NOT an inherited disorder?

The expression a² + b² is equivalent to

The state symbol for a solution in water is:

If a flask containing marble and acid is placed on a balance, the mass decreases steadily with time, which means that:

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?

Iron chloride can be prepared from the reaction of iron and:

Which of the following BEST characterizes a primary group?

In which of the following countries is proportional representation practised?

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.

Each of the features of our bodies is controlled by a:

The gross profit of a firm is $3,600, bad debts $100, rent paid $120, rent prepaid $20, general expenses $80 and discount received $110. The net profit is

Which one of the following pairs of definitions is correct?

If x = 2³ × 5² =, then x⁴ =

The halogens are found in:

A home computer system is equipped with a memory card reader, floppy disk drive, a DVD drive and an internal hard disk, The LEAST an MOST portable media that can be used with this computer are __________.

All of these are carbohydrates EXCEPT for:

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 these are compounds EXCEPT for:

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

The better of the two athletes claim never to have used the dangerous drugs found in his possession.