Question

How is soil important for us ?

2. What are the characteristics of an acid ?

3. What do you mean by soil pollution ? Name some pollutants that damage soil .

4. Write short notes on strong and weak ac​

Answer 1

Answer:

1. Advances in watershed, natural resource, and environmental sciences have shown that soil is the foundation of basic ecosystem function. Soil filters our water, provides essential nutrients to our forests and crops, and helps regulate the Earth's temperature as well as many of the important greenhouse gases.
2. Bases have these characteristics: Bitter taste (opposed to sour taste of acids) Slimy, or soapy feel on fingers (Slippery) Many bases react with acids and precipitate salts. ... Bases turn red litmus paper blue.
3. It is typically caused by industrial activity, agricultural chemicals or improper disposal of waste. The most common chemicals involved are petroleum hydrocarbons, polynuclear aromatic hydrocarbons (such as naphthalene and benzo(a)pyrene), solvents, pesticides, lead, and other heavy metals.
4. Strong acids ionize completely in water and weak acids only partially ionize in water. Strong acids completely break apart into their ions when dissolved in water. For example, hydrochloric acid, HCl .