You look through a microscope to view the Brownian motion of smoke in a container of air. Which one of the following statements is NOT true?

Which of the following is a prime number?

The proportions of elements in a pure compound are always:

The expression a² + b² is equivalent to

When rotated through 90° about the origin in a clockwise direction, the image of the point (3, 1) is

Which one of the following factors does NOT affect the rate of transpiration?

Urea is made from surplus proteins in:

The Haber Process is used to make:

The pie chart above shows how a student used 10 hours per week for studying English (E), Mathematics (M), French (F) and Geography (G), The amount of hours spent studying French is approximately

Enzymes catalyse specific reactions by having an active site where the substrate fits.This theory is called:

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

A political campaign is a method used by political parties to

Which of the relations represented below are functions?

Which of the following would NOT be used in conserving the environment in the Caribbean?

The major plant nutrients written as NPK refer to phosphorus, nitrogen and:

The number 2549 written to 2 significant figures is

Tooth decay can be caused by:

A flame test colour of red could indicate the presence of a compound of:

The wall of the heart is made of:

If x = 2³ × 5² =, then x⁴ =