Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
the part of the atmosphere that extends to a height of 10 km above the surface of the Earth.
the natural circulation of water on, above or below the surface of the Earth.
released energy - the energy released when new bonds are formed.
a substance that improves the efficiency of a catalyst is called a promoter.
the stratosphere extends from a height of 10 km to 50 km above the surface of the Earth.