To make fertilisers and explosives we need:

Which of the following does NOT play a role in evolutionary change?

In a plant cell, turgor is caused by:

1 mole of gas occupies 24 litres at room temperature and pressure, so the number of moles in
72 litres is:

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

The units we use for heat given out by a reaction are:

Instructions: Choose the one NEAREST IN MEANING to the original sentence.

The youth of the country need to organize themselves into cooperatives in order to support the prime minister's drive for self-sufficiency.

Healthy individuals are beneficial to a country′s development because such individuals are likely to be

Which of the following BEST characterizes a primary group?

The density of seawater is:

The simplest ratio of atoms in a compound is given by the:

Which of the following statements about photosynthesis is NOT true?

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

To which category of software does Microsoft Works belong?

in which of the following accounts is debenture interest charged as an expense?

Different structures based on the same molecular formula are called:

All of the following have a charge of -1 EXCEPT for:

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

The problem with the students is that they arrive late, gives no excuse, and are rude when spoken to.

$x is divided among three boys, Romon, Deven and Adam, in the ratio 2 : 3 : 7, respectively. If Adam gets $28, what is the value of x ?

If an increase of 20% will change the price of an item to $480, what is the original price of the item?