Answer:
Hard engineering options tend to be expensive, short-term options. They may also have a high impact on the landscape or environment and be unsustainable.
Explanation:
The lowest temperature measured during that time was 0 degrees Fahrenheit (-18 Celsius) on January 31, 1949.
Check out this website, it will explain it https://votesmart.org/education/presidential-primary
Addis Ababa, Bahir Dar, and Ambo are some examples I believe
The countries which are landlocked are Burundi, Ethiopia, Uganda and Rwanda.