(i) This can be a time-temperature graph, as the temperature can increase with the increase in time.
(ii) This can be a time-temperature graph, as the temperature can decrease with the decrease in time.
(iii) This cannot be a time-temperature graph since different temperatures at the same time are not possible.
(iv) This can be a time-temperature graph, as same temperature at different times is possible.
Year | 2003 | 2004 | 2005 | 2006 |
---|---|---|---|---|
Days | 8 | 10 | 5 | 12 |
(b) Population (in thousands) of men and women in a village in different years.
Year | 2003 | 2004 | 2005 | 2006 | 2007 |
---|---|---|---|---|---|
Number of men | 12 | 12.5 | 13 | 13.2 | 13.5 |
Number of women | 11.3 | 11.9 | 13 | 13.6 | 12.8 |