Environmental Science
If we uncover half of the forest, covering of the earth, what crisis will be produced at most and at first?

Population and ecological imbalance will rise up
Energy crisis will occur
Some species will be extincted
Rest half forests will maintain this imbalance

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Environmental Science
Which one is true?

commensalism when none of the interacting populations affect each other
symbiosis when the interaction is useful to both the populations
commensalism when the interaction is useful to both the populations
symbiosis when neither population affects each other

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