Fill in each blank with the correct word from the lesson.

1. Soil _______ is the wearing away and removal of topsoil by water, wind, or human activity.
2. Soil _______ involves protecting existing soil and restoring damaged areas.
3. Excessive use of chemical fertilisers and pesticides kills the _______isms that maintain soil structure.
4. Monoculture farming depletes soil _______s over time.
5. Soil Erosion and Conservation is an important topic in _______.

Choose the best option for each question.

1. Which is the most effective natural protection against soil erosion?
   a) Chemical fertilisersb) Stone wallsc) Plant roots and vegetationd) Concrete paths
2. What is contour ploughing?
   a) Ploughing in straight lines down a slopeb) Ploughing along hillside contour lines to slow runoffc) Ploughing after raind) Deep ploughing to break bedrock
3. What is desertification?
   a) Creating a new desert in a labb) The loss of productive land due to soil erosion and degradationc) Planting trees in a desertd) Studying desert animals

Write T for True or F for False in the brackets.

1. Plant roots and vegetation is one of the key concepts in the lesson on Soil Erosion and Conservation.
2. Chemical fertilisers is the main topic of this lesson.
3. Ploughing along hillside contour lines to slow runoff is one of the key concepts in the lesson on Soil Erosion and Conservation.
4. Ploughing in straight lines down a slope is the main topic of this lesson.

1. In your own words, explain what Soil Erosion and Conservation means.
2. List two things you learned from this lesson on Soil Erosion and Conservation.