In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche.
Dogma is more flexible than the orthodoxy
I believe the answer is B.
She calculated the device's potential size.
No body can really answer this question because it's different for everyone ! What I suggest though is searching up topics that interest you . I hope this helped !