The sun also heats up the air in the atmosphere at the equator. This air will move towards the poles & cool over time. In the process, wind that occurs due to air currents will introduce currents at the surface of the ocean. Wind & Air
Answer:
Heterogenous
Explanation:
Mud is a mixture of water and soil
This is a physical change.
Water combines with carbon dioxide to produce slightly acidic groundwater
that dissolves limestone and forms caves.
This is because the reaction between water and carbondioxide to form
bicarbonate ions( HCO₃⁻). The bicarbonate ions dissociate into Hydrogen
atoms thereby increasing the acidity.
The acidic environment results in the formation of acidic groundwater that
dissolves limestone and forms caves.
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A proton has a positive charge of 1
