confrontation

face (deal with, confront)

reckless deforestation

to recklessly deforest

serious, deep, heavy (topic), profound (change), weighty (matter)

seriousness

environment, surroundings / the natural environment

(astronomy, mythology) Earth; Terra

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

(chiefly women's speech) first person singular pronoun: I, me