The density of pure water is:

All of the following are systems programs EXCEPT __________

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

The area of the trapezium ABCD above is

Decomposers are important in the process of decay because:

Which of the following substances contains the elements carbon, hydrogen, oxygen and nitrogen?
Ⅰ DNA
Ⅱ carbohydrates
Ⅲ lipids
Ⅳ proteins

Genetic engineering involves:

Democratic control and open members are features of a

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

The alloy, brass, contains copper and:

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

To make cell walls, plants must have:

In an atom the neutron is found:

All of the following are possible consequences of global warming EXCEPT for:

Which of the following statements is true?

Which one of these statements is true for ALL electromagnetic waves?

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

The sharp-tasting compound in vinegar is:

An alternate form of a gene is called an:

THE ITEM is based on the following extract.

Unemployment and hard economic conditions have forced both parents in some Caribbean families to migrate, leaving an elder son or daughter to care for the younger brothers and sisters.

Which of the following problem is LEAST likely to affect the younger brothers and sisters?