Which one of these statements is true for ALL electromagnetic waves?
2. Question | Biology
A species of mouse has 32 chromosomes in its muscle cells.What will be the numbers of chromosomes in the mouse′s skin cells and sperm cells?
3. Question | Mathematics
If x = 23 × 52 =, then x4 =
4. Question | Mathematics
The number 0.0417 in standard form is
5. Question | Chemistry
When zinc sulphide is heated in air the gas produced is:
6. Question | Integrated Science
Many leaves are adapted to photosynthesise effectively by having:
7. 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?
8. Question | Physics
When we focus on a near object, the lens in our eye:
9. Question | Principles Of Accounts
An increase in drawing will result in
10. Question | Mathematics
If x = 2 and y = -1, then
3x - 5y / xy2
11. Question | Biology
The wall of the left ventricle is thicker than that of the right ventricle because:
12. Question | Information Technology
Two commonly used types of impact printers are __________.
13. Question | Biology
75 g of freshly dug soil was placed in an oven at 105 ℃ for 24 hours. It was allowed to cool, then reweighed. If the final mass of the dry soil was 66 g, what was the % water content of the original soil sample?
14. Question | Principles Of Accounts
When a trial balance does NOT agree, the difference is placed in a
15. Question | Mathematics
In a school of 910 pupils, 2/5 are girls and
2/7 of the girls play netball. How many
girls play netball?
16. 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
17. Question | Social Studies
In which of the following countries is proportional representation practised?
18. Question | Chemistry
In a titration the long tube with a volume scale is a:
19. Question | Chemistry
At 20 ℃ all of the halogens are:
20. Question | Mathematics
The number 32747 written to 4 significant
figures is