Someone who's familiar with and at ease in many different countries and cultures. I'd say that phrase defines Cosmopolitan.
Answer:
Active Voice- Who must sign this report?
Passive voice- This report must be signed by whom?
Answer:
I generally goes to office by car. But today I went by bus.
Hope it helps :)
Due to climate change and sometimes often global warming, It can have a big impact on how human and animal life is.