पुराने समय और आज के समय में पर्यवरण में आप क्या अंतर देखते हैं ? विस्तारपूर्वक लिखिए ।
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purane samay me pradusan bhut kam hota tha
lekin ab factories ke karan pradhusan bad gya h
Earth's climate has changed dramatically many times since the planet was formed 4.5 billion years ago. These changes have been triggered by the changing configuration of continents and oceans, changes in the Sun's intensity, variations in the orbit of Earth, and volcanic eruptions.
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