At 20 ℃ all of the halogens are:

0.045 × 10^-3 in scientific notation is

The ZAP Company hired you as a book-keeper. On April 3 you received an invoice along with goods from D. Kamin & Co. Ltd. for $600. Where should you record this transaction?

The following diagram shows a model used to show how breathing movements take place:

Which part of the model represents the diaphragm?

Automated directory assistance services utilize __________ technology for accepting user input.

Transition metals have all of these properties EXCEPT for:

AIDS is a killer disease because:

The density of seawater is:

Which of the following is the MAIN reason for conflict in trade sometimes arising between CARICOM countries?

Most plant and animal cells contain:

In coordinate geometry, the equation of the x-axis is

A home computer system is equipped with a memory card reader, floppy disk drive, a DVD drive and an internal hard disk, The LEAST an MOST portable media that can be used with this computer are __________.

Given that a and b are integers, which of the following is not necessarily an integer?

If x = 2 and y = -1, then 3x - 5y / xy²

The main parts of the human circulatory system are:

A ripple travels over the surface of some water. Its wavelength is 2 m, its amplitude is 0.1 m and its frequency is 0.5 Hz.The speed of the ripple is:

Identify the order in which the ancestors of the Caribbean people arrived in the region.

1. Amerindians
2. East Indians
3. Europeans
4. Africans

Which of the following words BEST describes a triangle with all its sides equal?

Excretion is best defined as:

Which of the following words BEST describes a quadrilateral with all its sides equal?