Answer:
Global temperatures; in the past half-century.
Explanation:
The graph of the global temperatures in the northern hemisphere was more or less costant until it spiked very hard in the past half-century. Therefore, it is called the "hockey stick" chart because its shape resembles a hockey stick. The original graph was made, as the exercise details, by Michael Mann and his colleagues in 1999.
Answer:
Nepal is called agricultural country because agriculture is very important in context of Nepal and it is the major occupation and main source of income, food and employment for the majority of nepalese people