10. Chemistry of the Environment

Water: Chemical Tests Chemical Tests for Water Water can be detected using specific chemical tests that show characteristic color changes. Anhydrous cobalt(II)…

Substances in Water from Natural Sources Overview Water from natural sources (rivers, lakes, seas) contains various dissolved and suspended substances. Some are…

Water Treatment Purpose of Water Treatment Water from natural sources must be treated to make it safe for drinking and domestic use. The treatment process…

Fertilisers Fertilisers Substances added to soil to provide essential nutrients that promote plant growth. They replace nutrients removed by crops or lost…

Air Air Composition Air is a mixture of gases with relatively constant proportions. The main components are nitrogen and oxygen, with smaller amounts of noble…

Effects of Greenhouse Gases Greenhouse Gases Gases in the atmosphere that trap heat energy from the Sun, preventing it from escaping back into space. This…

Reducing the Effects of Environmental Issues Overview Various strategies can be implemented to reduce the harmful effects of air pollution and climate change.…

Photosynthesis Photosynthesis The process by which green plants convert carbon dioxide and water into glucose (a sugar) and oxygen, using light energy from the…