The half-life of radon-222 is 3.8 days. Calculate how long a 48g sample of radon will last before it contains only 3g of radon and stops being effective (2 marks)

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?

i believe the answer is true.

16

explanation:

the marks go by 4s