Which of the following words BEST describes a quadrilateral with all its sides equal?

If U = {1, 2, 3, . . . 10 } and S = { 2, 4, 6, 8, 10 }, then S ' =

The second most common gas in the atmosphere is:

Which device has internal storage in the form of a buffer?

AIDS is a killer disease because:

Which one of these four statements is NOT true?

The gas released by baking powder is:

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

Which of the following are natural barriers to infection?
Ⅰ tears
Ⅱ skin
Ⅲ stomach acid
Ⅳ mucus

If x = 3² × 2³, then x⁴ =

Which of the following may result if many people do what the young man in the picture is doing?

1. The rapid growth of cities
2. The growth of shanty towns and squatter settlements
3. The brain drain experienced by many developing countries
4. Inadequate housing, educational and health facilities in urban areas

Which of the following does NOT play a role in evolutionary change?

The decimal equivalent of ⁷/₈ is

All of these are carbohydrates EXCEPT for:

Herbicides are used to destroy:

Which of the following sets has a finite number of members?

If x = 2³ × 5² =, then x⁴ =

__________ is a primary storage device that may be programmed and reprogrammed by the user.

The animals shown in the diagram were identified using a dichotomous key based on the visible characteristics listed below:
Ⅰ body shape
Ⅱ number of legs
Ⅲ number of wings
Ⅳ number of eyes
Ⅴ number of antennae
Which characteristics could be used to divide the animals into two groups?

All of these are fractions from crude oil EXCEPT for: