The lowest and the highest frequencies a typical young person′s ear can detect are
approximately:
5. Question | Chemistry
All of these are carbohydrates EXCEPT for:
6. Question | Chemistry
The two main protein groups are globular and:
7. Question | Biology
The main taxonomic groups in order, starting with the largest, are:
8. Question | Integrated Science
Hormonal methods of contraception work by:
9. Question | Physics
An electron, with its charge of 1.6 × 10-19 C, is moved from one place at +8 V to a different
place which is at 0 V.The energy released will be:
10. Question | Mathematics
The perimeter of a rectangle is 26 cm. The rectangle is converted to a square by tripling the width and taking a quarter of the length. What is the perimeter of the resulting square?
11. Question | Biology
Which of the following substances contains the elements carbon, hydrogen, oxygen and
nitrogen?
Ⅰ DNA
Ⅱ carbohydrates
Ⅲ lipids
Ⅳ proteins
12. Question | Mathematics
13. Question | Chemistry
Powders react faster than lumps because they have:
14. Question | Chemistry
The electrical charges on a proton and an electron are:
15. 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.
I formed the brilliant idea of climbing the fence and to hang from the top of the rail until the bull went away.
16. Question | Social Studies
POPULATION PYRAMID FOR COUNTRY X
Which of the following features of Country X may be gathered from the diagram above?
17. Question | Chemistry
Ammonia gas spreads out faster than hydrogen chloride, showing that it is:
18. 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.
We could reach the survivors neither by boat or by plane, and so we abandoned our search as futile.
19. Question | Biology
Which one of the following is the best way to measure growth of an organism?