Data Based Questions
Study the following newspaper and then answer the questions.
|2009 among the hottest years in Hong Kong history |
|With an average temperature of 23.50C, 2009 was probably the ninth-hottest years in Hong Kong Observatory's records.|
| |
|The past decade has been the hottest decade in the city's history. The Observatory attributed this to global warming|
|and dense urban development. |
|The past decade has also seen hot weather occurring more frequently than the previous one. Between 2000 and 2009, |
|134 "very hot days" of 330C or higher were recorded, compared with 89 days between 1990 and 1999. |
|The number of "hot nights" rose from 183 to 201 during the same period. Hot nights, when the daily minimum |
|temperature fails to drop below 280C, are measured by the Observatory. |
|The steadily warming weather is also affecting the growth of plants. A native shrub that sheds its leaves in winter |
|and sprouts in spring, was found to be sprouting new leaves near Shek Pik Reservoir in mid-December. The Taiwan |
|cherry, a foreign species that usually blooms in February, has been found flowering in Tai Po's Kadoorie Farm as |
|early as December for the past few years. |
|4 January 2010 |
a. What are the threshold temperatures for “very hot days” and “hot nights” respectively? (2 marks) _________________________________________________________________