Answer: C. Hydroelectric dams
Explanation:
The Andes has rivers that supply a significant amount of water and so are ideal for the construction of hydroelectric dams and power stations. More than 200 dams have been planned for the Andes with a lot of those being built already.
Environmentalists worry that this is too many dams to build as they believe that it will reduce the agricultural productivity of the region as it will reduce the amount of sediments being carried by the rivers to other areas.
Answer:
A group of scientists completes a study and writes it up in the form of an article.
The correct answer is A.
Kiara attended her family reunion, the first one in five years last month.
Answer: didn't he?
Explanation:
"He scored the highest, didn't he?" Since the question is positive, the tag should be negative.