Kirti Delhi, India 226 Questions 325 Answers 23 Best Answers 1k Points View Profile Kirti Asked: July 10, 20212021-07-10T03:22:03+05:30 2021-07-10T03:22:03+05:30In: Geography What does the term ‘sial’ refer to? What does the term ‘sial’ refer to? physical geography Share Facebook 1 Answer Recent Ishu Innovative 370 Questions 228 Answers 176 Best Answers 1k Points View Profile Best Answer Ishu Innovative 2021-07-10T03:23:32+05:30Added an answer on July 10, 2021 at 3:23 am Sial refers to the upper layer of the earth’s crust. Explanation: It is rich in silicon and aluminum. 1 Reply Share Share Share on Facebook Share on Twitter Share on WhatsApp Cancel the best answer Leave an answerCancel replyYou must login or register to add a new answer. Related Questions Why do the stars seem higher than they actually are in the sky? How is a thunder cloud formed?