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থিম নির্বাচন

আপনার পছন্দের থিম বেছে নিন।

The writer says that ____ .

A. The changes in the past were caused by natural cause as well as human activity .
B. The changes in the future will be caused as much by human activity as natural causes.
C. The changes in the past were caused as much by human activity as by natural causes.
D. The changes in the future will be caused less by human activity than by natural causes.
সঠিক উত্তরঃ B. The changes in the future will be caused as much by human activity as natural causes.
Explanation: