Explanatory Question
এই মুহূর্তে পৃথিবীর শক্তির বড়ো উৎস হল -
Read the answer carefully and go through the related questions on the right side to improve your understanding of this topic.
তেল ।
First read the answer fully, then try to explain it in your own words. After that, open a few related questions and compare the concepts. This method helps you remember the topic for a longer time and improves exam preparation.