Notes and Study material for Exams
What is acid rain? Acid rain is a form of precipitation that is highly acidic, meaning that it has a low pH. The pH scale ranges from Subscribe on YouTube 0 to 14, with 7 being neutral. Anything below 7 is considered acidic, and anything above 7 is considered alkaline. The pH of normal rain … Read more
Natural Sites – UNESCO’S List of World Heritage Sites The United Nations Educational, Scientific and Cultural Organization (UNESCO) is a specialized agency of the United Nations that promotes international collaboration among its 193 Member States. UNESCO’s mandate encompasses education, science, culture, and communication. One of UNESCO’s most important programs is the World Heritage List, which … Read more