The rate of reaction between marble and hydrochloric acid can be speeded up by using:

Which one of the following is NOT an inherited disorder?

Instruction: Choose from the four options the word or pair of words which BEST completes the meaning of the sentence.

While the committee members ............ insults across the floor, the chairman tried in vain to ............ order.

The halogen, bromine, at room temperature is a:

In an airport, a system consisting of sensors, bar code readers and remote controls is MOST LIKELY used for __________.

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

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

The biased reporter is concerned not so much with the truth of what he writes, as with its credibility.

The number of atoms in this formula, H₂SO₄, is:

__________ is a type of chip from which data can be erased by exposure to ultraviolet light.

Which of the following sets has an infinite number of members?

Simple sugars are called monosaccharides because:

In metals, the particles forming the structure are all:

The halogens are found in:

The proportions of elements in a pure compound are always:

All of the following are components of an ecosystem EXCEPT for:

Which of the following is the MOST important aim of the trading arrangements within CARICOM?

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

When limestone is heated strongly it changes into:

The monomer used to make poly (propene) is called: