Drought is caused by weather patterns, but is worsened by human activities. Choose two most likely reasons the author included the sentence in the passage.

Answer choices for the above question

to explain the recent surge in China's attention to ecology

to describe the cause of food shortages in areas of China

to establish that industries are responsible for the condition of the Yellow River

to establish that the condition of the Yellow River is connected to farming practices

to substantiate the formation of the Loess Plateau Watershed Rehabilitation Project

the purpose of the heading in the passage is to identify who is telling the story.

this excerpt is part of the book sugar changed the world (2010) written by marc aronson and marina budhos. as the book has been written by two people, the heading "marc" indicates that this specific excerpt is being narrated by aronson. in the fragment, marc describes his grandfather's story after hearing it from his cousin. however, there are other excerpts where budhos is the one that tells the story of her family.

aronson and budhos, who are husband and wife in real life, decided to write sugar changed the world when they found out how sugar, which had an important role in slavery and economy, changed their ancestors' lives.

your awnser would be b.