What is the name of the interface used by visually impaired persons to operate a computer system?

Powders react faster than lumps because they have:

The system used by mission control in Houston, Texas to monitor the operation of space exploration vehicles is an example of the __________ processing mode.

Why is testing a leaf for starch a reliable indication that photosynthesis has taken place?

Which of the following properties of water is not important to the survival of living things?

Enzymes are called biological catalysts because they:

The introduction of machines in agriculture results in the unemployment or farm workers.

The type of unemployment these workers suffer is

Alcohol can be separated from beer using:

Which of the following accounts should prepared as the final account for non-trading organization?

In which of the following countries is proportional representation practised?

When we are too hot, more blood flows through the capillaries near the surface of the skin. This helps us to cool down because the blood loses heat by:

Proteins are:

Tooth decay can be caused by:

Arrange the following secondary storage devices in order of increasing capacity from smallest to largest: a 1GB memory card, CD-ROM, DVD and a 128 MB flash drive.

A rectangular tank is 50 cm long, 50 cm wide and 10 cm deep. The volume of liquid it will hold is

Common salt can be used to make all of these EXCEPT for:

The part of the brain that processes information from the sense organs is the:

Which of the following are natural barriers to infection?
Ⅰ tears
Ⅱ skin
Ⅲ stomach acid
Ⅳ mucus

The wall of the heart is made of:

In electrolysing a solution of copper sulphate using copper electrodes, the anode: