The Earth′s first atmosphere contained all of these gases EXCEPT for:
2. Question | Principles Of Accounts
The balances listed below appear in a trader's trial balance. The item that is to be included in the Profit and Loss Account is
3. Question | Biology
Plant stems grow towards a light source.This is an example of:
4. Question | Chemistry
1 mole of gas occupies 24 litres at room temperature and pressure, so the number of moles in
72 litres is:
5. Question | Integrated Science
Which of the following statements about anaerobic respiration is true?
6. Question | Integrated Science
Which one of the following best compares the eye and a camera?
7. Question | Social Studies
Which of the following may contribute to group cohesion in the Caribbean?
1. Clear goals
2. Special privileges
3. Similar interests
4. Shared values
8. Question | Integrated Science
Water passes out of leaves through the:
9. Question | Physics
The air temperature on a particular day is 27 ℃. An air bubble trapped in a tube by a thread of
liquid is able to expand freely if it is heated.At what temperature would you expect the volume
of the air bubble to double?
10. Question | Social Studies
Democratic control and open members are features of a
11. Question | Chemistry
When zinc sulphide is heated in air the gas produced is:
12. Question | Integrated Science
Which of the following nutrients is/are digested in the stomach?
13. Question | Physics
A current of 2 mA is flowing through a wire. How long will it take for 6 coulombs of charge to
pass?
14. Question | Biology
The optimum pH for most enzyme action is:
15. Question | Mathematics
In the circle above, the circumference is
10 cm. The length of the arc AB, in
centimetres, is
16. Question | Physics
The graph shows the results of an experiment to investigate
the relationship between the voltage placed across a light bulb
and the current which then flows through it.Which one of the
following statements is NOT true?
17. Question | Integrated Science
Which of the following are all deficiency diseases?
18. Question | Biology
Crossing two brown mice produced an offspring with a black coat.Which of the following statements MUST be correct?
Ⅰ Brown coat is dominant to black.
Ⅱ The brown mice were heterozygous for coat colour.
Ⅲ The black mouse was homozygous for coat colour.
Ⅳ Crossing a black mouse with another black mouse could produce a brown offspring.
19. Question | Mathematics
In the diagram, B is due north of A; C is east
of B, and AB = BC.
20. Question | Mathematics
The water authority charges $10.00 per
month for the meter rent, $2.50 for the first
1 000 litres and $0.10 for each additional
100 litres. What is the total bill for 2 500
litres used in one month?
