According to the passage, the Ice Age came

1. According to the passage, the Ice Age came

[ঢাবিঃ গ ইউনিট (ব্যবসায় শিক্ষা) ২০১৮-২০১৯ : 2019]

1. As an effect of global warming

2. After 4.5 billion years of earth‘s life

3. When greenhouse were built

4. Early in earth‘s life

Answer

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