Fill in the blanks by choosing the most appropriate words from the options. (3 marks) Global warming (a)_________the phenomenon of increasing average temperature (b) _________the surface of the earth over the past one to two centuries. Scientists (c)___________detailed observations since the middle of twentieth century of various weather phenomena like temperatures. They are still doing so. They also (d) _________the related influences on climate. These data indicate that the climate of earth has changed (e) _________the beginning of geologic time and the (f)_________ of human activities is also evident.
a) i) was ii) is iii) had been
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Answered by
0
Answer:
A) Is
B)Was
C)Had been
D)
Answered by
0
Answer:
1. is
2. on
3. had been
4. studied
5. since
6. result
Explanation:
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