Answer: Dust released in the air could be radioactive.
Explanation:
Uranium is a radioactive element. It decays naturally to attain stability. While mining, the dust displaces into the air causing not only harm to environment but for the workers as well. The released in the air could be radioactive which would be inhaled posing threat for lung cancer.
Thus, the correct answer is dust released in the air could be radioactive is a concern about mining Uranium.
The six commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium....
The statement that is true of cooling down after physical activity is that you should cool down for about 5 to 10 minutes after being physically active.