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When was the last time you took the time to enjoy nature? Have you gone for a hike in the woods away from the hustle and bustle of life in the city, fallen asleep to the sounds of crickets singing their sweet song, or even enjoyed the calmness of your own back yard without the sounds of the radio or nightly news on lately? Just being in the presence of all the great natural wonders of this world offers a beautiful tranquility. This is why I believe nature is peace on Earth.
Identify the topic sentence of this paragraph
What is "When was the last time you took the time to enjoy nature?"