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
2. Question | Chemistry
Hydrochloric acid forms salts called:
3. Question | Integrated Science
The wall of the heart is made of:
4. Question | Biology
In order to carry out photosynthesis, a plant needs:
5. 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?
6. Question | Chemistry
All of these are fractions from crude oil EXCEPT for:
7. Question | Mathematics
If x = 23 × 52 =, then x4 =
8. Question | Biology
Most plant and animal cells contain:
9. Question | Mathematics
In the figure above, for which point is the
x-coordinate positive and the
y-coordinate negative?
10. Question | Mathematics
$x is divided among three boys, Romon,
Deven and Adam, in the ratio 2 : 3 : 7,
respectively.
If Adam gets $28, what is the value of x ?
11. Question | Chemistry
Different structures based on the same molecular formula are called:
12. Question | Chemistry
In making bread the enzymes in yeast break down starch to give:
13. Question | Biology
The white blood cells that produce antibodies are called:
14. Question | Chemistry
You never find native magnesium because:
15. Question | Biology
Which of the following are advantages of asexual reproduction in a flowering plant?
Ⅰ Large numbers of offspring are rapidly produced.
Ⅱ Favourable genotypes are maintained from one generation to the next.
Ⅲ The plant does not need to rely on wind or insects for pollination.
Ⅳ Several identical individuals grow close together.
16. Question | Biology
A lack of vitamin D in the diet causes:
17. Question | Biology
The following are all features of insect-pollinated flowers EXCEPT for:
18. Question | Social Studies
Who presides over the House of Assembly / House of Representatives?
19. Question | Chemistry
Hydrocarbons contain carbon and:
20. Question | Social Studies
Which of the following is based on exploiting non-renewable natural resources?