Answer:
more carbon became present in Earth's soil, I think that but not sure
The second one because they can indicate infection and sickness
According to my research it’s C: Nucleus
This is due to the fact that women usually become infected at younger age than men. Many young women have a sexual relationship with older men who are more likely a hiv-positive, with the result that far more young women that young men in Africa were infected. Also the women are at higher risk of infection. The reason is both physical and socio-cultural.
