Answer:
The world is facing incredibly serious natural resource and environmental challenges: Climate change, fresh water depletion, ocean over-fishing, deforestation, air and water pollution, the struggle to feed a planet of billions.
Explanation:
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Quiz lit it helped me especially this specific question
Answer: The adverb slowly describes the verb walked. It basically says HOW the person walks (like did they walk fast, slow, at an average pace, etc., and in this case, it says that they walked in a slow manner).
Edit: so I’m assuming effect is like the mood of the story created, and I’d say that it creates a somber, suspenseful feeling, opposed to if she was walking quickly, which would create a rushed mood.