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

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?

The Haber Process is used to make:

Raising the temperature of a reversible reaction always encourages the:

The voltages from the electrochemical series are -2.92 for potassium and +0.34 for copper, which shows that:

The number of litres in 2000 cm³ is:

The water authority charges $20.00 per month for the meter rent, $2.00 for the first 1 000 litres and $0.20 for each additional 100 litres. What is the total bill for 2400 litres used in one month?

The alkane compound with seven carbon atoms is:

A loudspeaker emits a steady note.A girl sings a note which is of lower pitch but higher volume. The sound wave she is producing has:

The highest authority of the Caribbean Community (CARICOM) is the

Boiling and evaporation both involve a liquid turning into a vapour (i.e. a gas).The following statements relate to water.Which one is NOT true?

Which of one the following statements about phloem cells is NOT true?

Many leaves are adapted to photosynthesise effectively by having:

Which of the following documents may be used to inform a customer of an undercharge on an invoice?

The area of the trapezium ABCD above is

When dilute sulphuric acid is electrolysed the two gases produced are hydrogen and:

The state symbol for a solution in water is:

The density of seawater is:

Candied fruits are preserved in a strong solution of:

The alcohol in beer and spirits is called: