Why is natural erosion a beneficial process? It helps create fertile soil.
b. It leads to reduced vegetation.
It happens rapidly.
d. It prevents damage from natural disasters.

Match each symbol with its description.

Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution

Describe the impact of deforestation of both abiotic and biotic factors within the tropical rainforest.