Title: वैकल्पिक

Text: Technically, chemistry is the study of matter. But I prefer to see it as the study of change. Now, just, just think about this. Electrons change their energy levels. Molecules change their bonds. Elements combine and change into compounds. Well that's all of life, right? It's the constant, it's the cycle. It's solution, dissolution, over and over and over. It is fascinating, really. प्रत्येक पराग्राफले परीक्षण हुनेछ।

Save test: यदि तपाईं यो टाइपिङ परीक्षणलाई साझा गर्न चाहानुहुन्छ भने यो प्रयोग गर्नुहोस् (केवल प्रमाणीकृत प्रयोगकर्ताहरूको लागि)।