The video discusses acid rain, a phenomenon where rain becomes more acidic due to atmospheric pollutants. It explains the pH scale, highlighting how acidity and basicity are measured. While acid rain is common due to pollution, basic rain is rare because it requires specific conditions. The video explores the potential of using basic compounds to neutralize acid rain, offering a possible solution to mitigate its harmful effects.

What is one of the main causes of acid rain?

• Mixing with calcium compounds

• Mixing with sulfur dioxide and nitrogen oxides

• Mixing with oxygen

• Mixing with hydrogen

How does the pH scale help in understanding acidity?

• It shows the color of a substance

• It indicates the concentration of hydrogen ions

• It measures the density of a substance

• It measures the temperature of a substance

What is the pH level of pure water?

• 5.6

• 7

• 1.5

• 10

Why is basic rain less common than acid rain?

• Basic rain is more harmful

• Basic rain requires more pollution

• Basic rain is a myth

• There are fewer basic compounds in the atmosphere

What is one proposed method to combat acid rain using basic compounds?

• Reducing the pH of rainwater

• Releasing sulfur dioxide into the atmosphere

• Using calcium carbonate to neutralize acids

• Increasing nitrogen oxides in the air