Notes

1. Why is the density of population important in a unit?
Answer: The density of population indicates how crowded or sparsely populated an area is.

2. How do earthquakes contribute to landslides?
Answer: Earthquakes can trigger landslides by shifting the earth's surface and dislodging rocks and soil.

3. How can land be classified based on ownership?
Answer: Land can be classified as private (owned by individuals) or community (collectively owned).

4. What percentage of the earth's surface is covered by land?
Answer: Land covers about 30% of the earth's surface.

5. What are the basic components of our ecosystem?
Answer: Natural vegetation and resources are the basic components of our ecosystem.

6. How does soil impact agriculture development?
Answer: Soil provides nutrients and support for plant growth in agriculture.

7. What opportunities do industrial areas provide?
Answer: Industrial areas provide employment opportunities through factories and facilities.

8. How can plants be used as a valuable resource?
Answer: Plants provide wood for timber and firewood.

9. What is soil conservation and why is it important?
Answer: Soil conservation protects soil from degradation, ensuring sustainable agriculture.

10. How is a population pyramid used to study population composition?
Answer: Population pyramids show age and gender distribution in populations for study.

11. Why is it important to protect endangered species?
Answer: Protecting endangered species helps maintain biodiversity and ecological balance.

12. How has clearing forests impacted feeding the growing population?
Answer: Clearing forests for crops has led to deforestation and environmental degradation.

13. Why is it important to conserve land resources?
Answer: Conserving land ensures access to essential resources and sustainable development for future generations.

14. How can planting trees in coastal regions protect soil cover?
Answer: Tree planting in coastal regions creates windbreaks to prevent erosion.

15. What is the process of soil formation and what contributes to it?
Answer: Soil forms through rock weathering driven by climate and other factors.

16. Name some countries with Mediterranean forests.
Answer: Countries with Mediterranean forests include Palestine, Italy, and Turkey.

17. How can stone, grass, and soil protect against erosion along contours?
Answer: Building barriers with stone, grass, and soil and creating trenches can prevent erosion along contours.