How many subsets does the set {a, b, c, d, e} have?
4. Question | Biology
A student observed a plant cell through a microscope and made an accurate drawing of the cell.
If her drawing was 80 mm in diameter and had a magnification of ×2000, what was the real
diameter of the cell?
5. Question | Chemistry
The main metal in tin cans used to preserve food is:
6. Question | Biology
Plants lose water through their leaves by the process of:
7. Question | English A
Choose the ONE underlined part A, B or C that is inappropriate. If the sentence is acceptable as it stands, choose D.
Had they not been forewarned, they might have joined the queue, not knowing that gas was not on sale at that station.
8. Question | Social Studies
A man and woman plan to start a family. Which of the following is likely to be LEAST important to them?
9. Question | Chemistry
The alkane compound with seven carbon atoms is:
10. Question | Mathematics
The triangle ABC above shows the angle of
elevation of the top, B,
of a tower, BC, from A, to be 30°.
AB = 40 m. The length of BC is
11. Question | Integrated Science
We do not see an object if rays of light from it are focussed on the blind spot because:
12. Question | Integrated Science
Which of the following tests describes the test for glucose?
13. Question | Chemistry
The simplest ratio of atoms in a compound is given by the:
14. Question | Integrated Science
Which of the following nutrients is/are digested in the stomach?
15. Question | Chemistry
A plastic that softens every time it is heated is said to be:
16. Question | Mathematics
A store charges 6% VAT on all sales. What
is the total cost of a shirt marked at $30 ?
17. Question | Biology
Vaccination causes a person′s immune system to produce:
18. Question | Social Studies
Which of the following are aspects of the socialization process?
Ⅰ. Reproduction
Ⅱ. Religious teaching
Ⅲ. Recreational activity
19. Question | Biology
Plant stems grow towards a light source.This is an example of:
20. Question | Biology
Which one of the following is a biological component of a pond ecosystem?