Both can transfer energy through matter, but sound waves travel through air and infrared waves travel through space.
Answer:
There are two bases of the Indian social division into castes. The castes system has been consolidated and fed by religious practices. Ancient Hindu texts speak about four castes or profession: brahmins (priests), warriors, merchants and workers. Brahmins were at the top of society, the elite. The other source is simply social practice. There are still several groups that are seen as inferior , the "untouchables" just like the dalits; they perform the lowest and dirtiest jobs. Though castes don´t exist formally in Indian law, they exist in reality and social and racial divisions run still deep in India.
Explanation:
<span>While, undoubtedly, the sources for the laws of the United States owe some debt to Christian religious texts of the past, the founding fathers looked to the philosophies of the Enlightenment, which sought to throw off the shackles of the dark ages brought about by the Christian zealotry of the past, to write the nations first set of laws. As such, the laws of the United States draw from the laws of previous generations and historically influential societies.</span>
