Infrastructure is underdeveloped is the answer
Answer:
5g will be left
Explanation:
Uranium 235 have a half-life of 700 million* years. This means that the element will decay to half its initial amount by that time. So if I start with 10g chunk of 235 Uranium, after 713 million years, only half of it (5g) will be remaining.
*the exact half life of Uranium 235 is 703,800,000 years.
Two human developments that would increase the risk of being affected by natural hazards are pollution ,this is a reason why many animals are dying and if we carry on it could be the end as we know it another human development is like the corona virus this is the way of Mother Nature being sick and telling us that there is too many people on the planet