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.
Miles to kilometers (km) (from land and US, UK nautical miles) conversion factors are listed below. To find out how many kilometers in a mile, multiply by the conversion factor or use the converter if the conversion is from a land mile. 1 Mile = 1.609344 Kilometers 1 Mile [US, nautical] = 1.852000 Kilometers 1 Mile [UK, nautical] = 1.853184 Kilometers