Question

suggest two facts which would be borne in mind while seleciing a site for a building on coastal area

Answer 1

They are both past participles of to bear. However, according to, for example, this source: Thanks to the vagaries of English spelling, bear has two past participles: born and borne. Traditionally, born is used only in passive constructions referring to birth: I was born in Chicago.

firstly the distance between sea coast and building area

checking the flood levels like tsunami protection in that area

the utility connections like water, light, food supply , market, hospitals , schools.