I believe the answer is England? because that was the year the Norman Conquest was led by William the Conqueror.
C. Opportunity cost
This is the opportuntiy that they lost. it costed them. Thus, opportunity cost for another opportunity.
Answer:
D. air brakes is the correct answer.
Explanation:
Corruption in the health infrastructure leads to the more spread and damaged of this virus.
The ebola crisis of 2013-2016 could have been prevented if corruption in local governments had been corrected because corruption in health infrastructure led to the spread of elbola disease. Difficulty occurs in the containment of ebola outbreak due to weak surveillance systems and poor public health infrastructure.
It quickly spread to Guinea's bordering countries, Liberia and Sierra Leone due to poor containment facilities which leads to more death casualties. If there is no corruption in the public health infrastructure this ebola crises can be prevented so we can conclude that corruption in the health infrastructure led to the more spread and damaged of this virus.
Learn more: brainly.com/question/25794937
Beavers. they prevent floods, droughts, and forest fires
Butterflies. they also pollinate plants
Bats. they eat bugs that keeps the population under control and protect crops