In which one of the following four cases would the pressure be greatest?

Hormonal methods of contraception work by:

The sizes of the interior angles of a polygon are x°, 2x°, 60°, 3x° and 36°. What is the value of x ?

Cells become specialised to carry out different roles.This process is called:

The following figures are taken from a manufacturing account.


The cost of tie year's production of finished goods is

When two solutions are mixed and give a solid product we call it:

Most plant and animal cells contain:

The number of electrons in a full electron shell is:

The density of seawater is:

All the following are examples of hardware interfaces EXCEPT __________.

Which of the following statements about diffusion is NOT true?

Difficulty faced at home and the hope of a better life in town BEST illustrate the effect of

The diagram above shows the graphs of 3x - y = 1 and 5x + 2y = 20 . Which ordered pair (x, y) satisfies both equations?

THE ITEM refer to the following family functions.

The family produces children and maintains the population.

In electrolysis the anode is the:

All gas exchange surfaces in vertebrate animals have:

Which of the following is NOT transported in phloem?

The expansion of (x - 2)² is

The following are all natural materials EXCEPT for: