Some of this you have to do on your own
There a lot of possible answers for this question. As shown in the image, we can infer one of the following characteristics that could be used to determine if an intrusive igneous rock has a mafic composition:
<span>- color/light color/dark color
- density/low density/high density
- mineral composition
- rich in Al, Si, or rich in Fe, Mg
- presence/absence of quartz/potassium feldspar/pyroxene/olivine</span>
The more people that are migrating to urban areas (urbanization) needs more crops for the citizens which causes more people to grow crops and without crop rotating or methods to prevent soil degradation. More likely answer is that more industry grows in the urbanized areas and they have poor management of the soil which causes soil degradation<span />
