__________ is a primary storage device that may be programmed and reprogrammed by the user.

All gas exchange surfaces in vertebrate animals have:

All of these are fractions from crude oil EXCEPT for:

The catalyst in the Haber Process is:

Urea is made from surplus proteins in:

When something gets hotter, the particles in it gain more:

In terms of mass, compared to a proton, an electron:

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

Despite his short-temper, his willingness to give of his wealth to help others to succeed led people to call him ............

The point where two neurones connect is called:

A financial institution needs only to provide the caller with a limited amount of information. A __________ system is ideal to satisfy this need.

Which of the following is LEAST likely to lead to the development of the Human Resources of a country?

The triangle ABC above shows the angle of elevation of the top, B, of a tower, BC, from A, to be 30°. AB = 40 m. The length of BC is

If closing stock Were overstated by $1,000 at the end of a trading period, the error would result in an

The alcohol in beer and spirits is called:

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

I formed the brilliant idea of climbing the fence and to hang from the top of the rail until the bull went away.

The lowest and the highest frequencies a typical young person′s ear can detect are approximately:

Breathing in fish involves which two processes?

The expression a² + b² is equivalent to

The sharp-tasting compound in vinegar is: