to pay attention to; to focus on

environment, surroundings / the natural environment

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

question, problem on homework etc. / a question; a matter (of time etc.) / a problem (something that needs to be dealt with); a trouble / an issue; a matter

a piece of research, a study, investigation

to research, to study

society (group of people sharing culture) / a class, a world of a certain group

social science