The expression a² + b² is equivalent to

When aluminium is extracted by electrolysis, cryolite is added to:

Which one of the following lists only differences between aerobic respiration and anaerobic respiration?

The type of polymerisation used to make polythene is called:

When we sweat, we lose heat because:

A political campaign is a method used by political parties to

Which statement is not true of sperm and ova?

Active transport:

The following statements describe a magnetic field plot, showing the lines of force.Which one is true?

When focussing on distant objects:

If the relative atomic mass (RAM) = 1 for hydrogen and 16 for oxygen, the formula mass for H₂O₂ 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 __________.

Vegetables like cauliflower, cabbage and broccoli have been bred from the original wild brassica plant by:

After Lloyd's father died, Lloyd invited his mother to live with his wife, his two sons and himself. The new family structure would be termed.

The energy used in thermal decomposition is:

When an acid neutralises an alkali the pH is likely to be:

The optimum pH for most enzyme action is:

Which of the following is LEAST likely to lead to the development of the Human Resources of a country?

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

All of these elements form allotropes EXCEPT for: