Vaccination causes a person′s immune system to produce:

The catalyst in the Haber Process is:

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.

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

An electron, with its charge of 1.6 × 10^-19 C, is moved from one place at +8 V to a different place which is at 0 V.The energy released will be:

All of these elements form allotropes EXCEPT for:

When carbon dioxide gas passes through limewater, the limewater:

To remove limescale from a tap you need:

Compared to industrialised countries, developing countries:

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

The energy used in thermal decomposition is:

In humans, an egg cell is released from an ovary approximately every:

In electrolysing a solution of copper sulphate using copper electrodes, the anode:

In pea plant size, tall is dominant to dwarf.You cannot tell whether a tall plant is homozygous (TT) or heterozygous (Tt).To find its genotype you perform a test cross.This involves:

How many grams are in 2.5 kilograms?

Which of the following are the functions of a book-keeper?

1. Analysing
2. Interpreting
3. Posting
4. Recording

All of the following are non-metals EXCEPT for:

How much simple interest is due on a loan of $240 for two years if the annual rate of interest is 4 per cent?

The marked price of a bicycle was $260. A man bought the bicycle on hire-purchase by making a down payment of $100, and twelve monthly payments of $16 each. How much could he have saved if he had bought the bicycle for the marked price?

Which of the following tests describes the test for glucose?