A circular hole with diameter 4 cm is cut out of a circular piece of card with a diameter of 16 cm. The area of the remaining card, in cm² , is

A ballpoint pen mark can be removed using:

The length of an insect such as a grasshopper increases in steps.This is because:

Natural Increase in Population

The natural increase in population for country X in 2006 was

The site of reabsorption of MOST of the water from the filtrate.

Hydrocarbons contain carbon and:

A typical soil contains mineral particles, humus, water, air and:

The proportions of elements in a pure compound are always:

When a person who has diabetes injects himself with insulin it:

All of these are trace elements EXCEPT for:

A plastic that softens every time it is heated is said to be:

When something gets hotter, the particles in it gain more:

Which of the following statements is UNTRUE?

Eight bits are called a __________.

Mrs. Green is a dry goods merchant. Which of the following transactions would result in a debit to her Cash Account?

In the diagram of a section through a synovial joint, the part labelled X represents the:

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

She was not feeling well at the beginning of the journey, and sitting at the front of the car made her feel worse.

Any solution with a pH below 7 must be:

If US$1.00 is equivalent to EC$2.68, how much in US$ would one get for EC$100?

The optimum temperature for enzyme action is: