Answer:
A
Explanation:
Tilling agitates the topsoil and removes ‘unnecessary’ vegetation so the main crop can grow without competition. Tilling improves soil aeration and drainage for plants to grow well. Nonetheless, it can lead to other consequences such as soil erosion because it loosens the soil and makes it easy to be carried away by wind and water.
Based on your knowledge of the carbon cycle, what do you think might happen if humans were to continue to clear and burn vast areas of forests for building? Eventually we would run out of forests and the air would be very polluted. Explain how a nutrient can be a limiting factor in an ecosystem.
Answer:
A parasitic relationship is one in which one organism, the parasite, live off of another organism, the host, harming it.
Waste is buried deep in the glacier but rides downhill and will eventually melt out. Beginning in 2007, removal of human waste via Clean Mountain Cans
