Reducing carbon dioxide (CO₂) in the atmosphere is critical to slowing global warming. While direct air capture (DAC) ...

The ancient Romans were great builders, especially known for their aqueducts. These are still standing today because they ...

Calcium oxide or calcium hydroxide can be used in ... Add a level spatula of calcium hydroxide powder to the beaker. Stir thoroughly, then estimate and record the pH of the mixture (as in step ...