query: એ તો સ્પષ્ટ છે કે માનવજાતની વૈજ્ઞાનિક અને ટેકનોલોજીકલ પ્રગતિને કારણે દુનિયા ઘણું બદલાઈ ગયી,અને વધારે વસ્તી અને માનવજાતની અતિશય જીવનશૈલીને કારણે સમસ્યાઓ વધુ વધી.
positive: It is obvious enough that the world has changed much because of humankind's scientific and technological advancements, and problems have become greater because of overpopulation and mankind's extravagant lifestyle.
negative: It is not obvious enough that the world has changed much because of humankind's scientific and technological advancements, and problems have become greater because of overpopulation and mankind's extravagant lifestyle. It is unobvious enough that the world has changed much because of humankind's scientific and technological advancements, and problems have become greater because of overpopulation and mankind's extravagant lifestyle.