Which correctly describes an issue relating to the mining and extraction of uranium?
Select all that apply.
the production of tailings, which contain radioactive material
the need to bury mine waste under a protective barrier
the possibility of being exposed to lethal doses of radiation
the production of toxic radon gas

All of the above

Explanation:

The mining and extraction of uranium posses serious environmental and health hazard to prospectors. Uranium exists naturally as uraninite or pitchblende as it is fondly known. It is an oxide of uranium.

The mineral uranium is an energy source in nuclear power plants.

Extraction of this mineral leads to the following hazards;

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-