विज्ञान और हमारी दिनचर्या विषय पर लगभग 80 से 100 शब्दो में अनुच्छेद लिखिए

Cheap is too valuable as common is to

Identify the structure of the human heart which is a muscular chamber that pumps blood out of the heart and into the circulatory system.

To what does crevecoeur mainly attribute the metamorphosis of character he notes among the settlers in colonies? laws apply to all citizens equally. settlers are glad to be in america instead of in europe. land is given away freely in the colonies. there is no religious persecution in the colonies