6 items

    Water Quiz

    This quiz is about water and its importance in the environment. It covers topics such as hydrology, aquatic ecosystems, and water conservation.

    What is the chemical formula for salt?

    What is the chemical formula for water?

    What is the chemical formula for salt?

    What percentage of the Earth's surface is covered by water?

    What is the chemical formula for carbon dioxide?

    Which of the following is a renewable source of water?