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explain action of acids(type of chemical weathering)
The primary agents in chemical weathering are water, oxygen and acids. Acids are chemical compounds that decompose in water to release hydrogen atoms. Hydrogen atoms frequently substitute for other elements in mineral structures, breaking them down to form new minerals that contain the hydrogen atoms. The most abundant natural acid is carbonic acid, a weak acid that consists of dissolved carbon dioxide in water.Carbonation- a type of chemical weathering occurs  Carbon dioxide mixes with water to form carbonic acid.Carbonic acid  can then break down rock into smaller particles. This type of weathering can occur at the earth's surface when atmospheric moisture mixes with Carbon dioxide in the air to form carbonic acid. This weak acid then rains down on exposed rocks and chemically weathered by this process


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