In parts of London, there was an increase in the number of cases of TB in the 1990s.
Which factor is most likely to have contributed to this?
1 )
global warming increasing mean temperature
2 )
increase in air pollution
3 )
increased pathogen mutation rate
overcrowded accommodation
تحلیل ویدئویی تست
تحلیل ویدئویی برای این تست ثبت نشده است!
پرسش و پاسخ های مشابه
سوال کنید یا به سوالات دیگران پاسخ دهید ...