As you see this is the mold which causes severe health problems infact one of the most dangerous mold is that Toxic black mold which cause respiratory, nasuea and other problems like skin etc. Also it causes cancer as well.
40 km = 24.8548 mi. There are 1.609344 kilometres in a mile. Therefore, rounded to two decimal places, 40 kilometres is equal to 40/1.609344 = 24.85 miles.
Converting miles to kilometers involves dividing the number of miles by 0.6214. Five miles, therefore, equals approximately 8 kilometers. A marathon covers 26.2 miles. Dividing 26.2 by 0.6214 gives the number of kilometers, and the answer is 42.2 kilometers. Since a kilometer is 1,000 meters, figuring meters is easily accomplished by multiplying the number of kilometers by 1,000.