Iron gets its rust from exposure to moist and oxygen
Definently A because you can rule all the others out if you look at map
<span>Desertification is the degradation of land in and dry subhumid areas resulting primarily from natural activities and influenced by climatic variations. Desertification is a really major issue in Africa. hope this helps btw</span>
You could use solar panels for example as a way of getting energy for heating water, electricity, etc.
