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.
1 kilometer is equal to 0.62137119 miles: 1 km = (1/1.609344) mi = 0.62137119 mi The distance d in miles (mi) is equal to the distance d in kilometers (km) divided by 1.609344: d (mi) = d (km) / 1.609344