Why were human beings given a separate sphere?
a. Their impact to our planet is growing rapidly as the years go by
b. They became a separate and self sustaining biophysical system
c. They have been taking care of our planet dutifully
d.Their actions have promoted the preservation of the planet's function
there are 2 correct answers and all correct answers must be selected
Answers & Comments
Answer:
a and b
Observing the later choices, I could say that they are not the answers.