পৃষ্ঠাটি লোড হচ্ছে . . .
দয়াকরে অপেক্ষা করুন।
"লোডিং সময়" আপনার ইন্টারনেট স্পিড এর উপর নির্ভরশীল।
| (ক) environment | (খ) almosphere |
| (গ) pollusion | (ঘ) Demography |
environment
The word ecological is primarily related to ecology, the scientific study of how living organisms (plants, animals, humans) interact with each other and their physical surroundings (environment, habitat, nature). It deals with relationships, systems, and balance within nature, often concerning environmental issues like conservation, pollution, and sustainable living