
(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 |

Fill in the blanks in the sentences below (the verbs given in brackets will give you a clue).
(i) The earth trembled, but not many people felt the ____. (tremble)
(ii) When the zoo was flooded, there was a lot of _____ and many animals escaped into the countryside. (confuse)
(iii) We heard with _____ that the lion had been recaptured. (relieve)
(iv) The zookeeper was stuck in a tree and his _____ was filmed by the TV crew. (rescue)
(v) There was much _____ in the village when the snake charmer came visiting. (excite)