The word 'ecological'is related to______
A
atmosphere
B
pollution
C
environment
D
demography
Correct Answer: environment
Ecological - পরিবেশ। Environment - পরিবেশ। Atmosphere - বায়ুমন্ডল। Pollution - দূষণ। Demography - জনসংখ্যাতত্ত্ব।