The lowest and the highest frequencies a typical young person′s ear can detect are
approximately:
2. Question | Chemistry
Ammonia gas spreads out faster than hydrogen chloride, showing that it is:
3. Question | Integrated Science
Which one of the following lists only differences between aerobic respiration and anaerobic respiration?
4. Question | Information Technology
All the following are examples of hardware interfaces EXCEPT __________.
5. Question | Social Studies
Which of the following are examples of institutions?
1. Bank
2. School
3. Church
4. Government
6. Question | Biology
The optimum pH for most enzyme action is:
7. Question | Mathematics
The mean of ten numbers is 58. If one of the
numbers is 40, what is the mean of the other
nine?
8. Question | Principles Of Accounts
Which of the following describes real accounts?
9. Question | Chemistry
To electrolyse solid lead bromide it must first be heated so that:
10. Question | Physics
A detector close to a sample of radioactive material records 76 counts per second (cps).
Precisely 2 days later the count rate has fallen to 22 cps.The count rate due to background
radiation, taken immediately before and after the experiment, averaged 4 cps. The half-life of the
material is:
11. Question | Mathematics
The interest rate on investments in a bank
decreased from 8 1/2 per cent per annum to 6
per cent per annum. The difference in annual
interest on a deposit of $2 000 is
12. Question | Physics
Which one of the following is NOT a magnetic material?
13. Question | Chemistry
All of these are ordered crystalline structures EXCEPT for:
14. Question | Chemistry
In the modern Periodic Table the elements are arranged:
15. Question | Biology
Asexual reproduction produces:
16. Question | Physics
The specific heat capacity of a particular liquid is 3000 J kg-1 K-1. A large beaker containing
2 kg of the liquid has to be warmed from 25 ℃ to 35 ℃. A 100 W heater is used. If all the
thermal energy could be transferred to the liquid, how long would it take?
17. Question | Integrated Science
Demersals are fish that are found:
18. Question | Information Technology
A __________ is a device that is externally connected to and under the control of the central processing unit.
19. Question | Biology
The white blood cells that produce antibodies are called: