Which one of the following statements about light passing down an optical glass fibre is NOT true?

A boy throws a cricket ball straight up in the air. At the very top of its flight:

Which of the following are all deficiency diseases?

A square has the same area as a rectangle with sides of length 9 centimetres and 16 centimetres. What is the length of the square?

Simple sugars are called monosaccharides because:

Iron chloride can be prepared from the reaction of iron and:

Which of the following statements about lipids is NOT true?

A relationship between two organisms where one organism derives benefits from the relationship and the other organism derives no benefit, but is not harmed, is called:

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:

The average of a set of numbers reduces from 14 to 11 when the number 35 is removed. How many numbers were in the original set?

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.

Proteins are:

At 20 ℃ all of the halogens are:

If x is an odd number, which of the following is also odd?

In hot conditions the surface blood vessels in the skin undergo vasodilation. This allows:

Transition metals have all of these properties EXCEPT for:

Genetic engineering involves:

The alloy, brass, contains copper and:

Sweating can help to cool the body. This cooling is achieved mainly by:

Potassium reacts quickly with water but we do not use it with acids because: