Answer:

Explanation:
Total distance of one lap of the marathon = 42.2 km
Distance of the lap that is inside the stadium = 400 m
The distance that is run outside the stadium is the difference between the two distances

The distance that is run on the road outside is
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Answer: NCOV was first identified in Wuhan city , China. it is probably emerged from an animal source.
Explanation:
Alzheimer's disease is the most common cause of dementia.
The word dementia describes a set of symptoms that can include memory loss and difficulties with thinking, problem-solving and/or language. These symptoms occur when the brain is damaged by certain diseases, including Alzheimer's disease.