Across
- 3. process by which microbes such as bacteria decompose organic material in the absence of oxygen.
- 4. A layer of liquid iron and nickle with low viscosity
- 6. Gradual destruction and removal of rock or soil by natural forces (water, wind, ice)
- 10. Increasing the number of people that migrate from rural to urban areas
- 12. Having a common center
- 13. Includes the Earth's crust and the upper part of the mantle.
- 14. Converting uncultivated land like natural forests, grasslands, or wetlands, into crops or pastures for farming
Down
- 1. Removing trees and forests at a large rate to create space for infrastructure and building construction
- 2. Urban areas are becoming more tech savvy with improvements in medical facilities, communication, and social amenities. This encourages a growth in population in urban areas.
- 5. Removing weeds and loosening the soil to optimize retention and access to air, water, and nutrients.
- 7. Leads to the formation and release of nitrous oxide, one of the most harmful greenhouse gases.
- 8. Cities/Towns. More densely populated areas with significant amounts of infrastructure
- 9. Makes up 65% of Earth's total volume
- 11. Agriculture is an important means of financial income in terms of selling goods