Correct option is C
Grazing and fuelwood collection, while they may put stress on local vegetation and wildlife, are generally not considered a primary or large-scale reason for the depletion of flora and fauna. These activities are typically small-scale and often a part of subsistence living for rural communities. They can lead to localized depletion of resources but are not a significant factor compared to the broader impacts of agricultural expansion and large-scale development projects. Agricultural expansion involves clearing forests to create farmland, leading to habitat destruction on a large scale. Similarly, large-scale development projects like dams, highways, and urbanization result in deforestation, loss of biodiversity, and fragmentation of habitats. These factors have far-reaching effects on ecosystems and contribute significantly to the depletion of flora and fauna.
Information Booster
1. Agricultural Expansion:
· Forests are cleared to create farmland, leading to habitat loss.
· A primary cause of deforestation globally.
2. Large-Scale Development Projects:
· Construction of dams, roads, and urban infrastructure destroys natural habitats.
· Fragmentation of ecosystems disrupts wildlife movement and reduces biodiversity.
3. Grazing and Fuel Wood Collection:
· While grazing may damage local vegetation and fuelwood collection can lead to resource depletion, their impact is generally localized.
· These are considered subsistence activities and are not primary contributors to large-scale depletion.
4. Habitat Destruction: Agricultural and development activities are the leading causes of habitat destruction and species extinction.
Additional Knowledge
Agricultural Expansion
· Valid reason for depletion.
· Clearing of forests for agriculture reduces biodiversity, destroys habitats, and affects soil fertility.
Large-Scale Development Projects
· Valid reason for depletion.
· Infrastructure projects result in significant loss of forests and disruption of ecosystems.
Grazing and Fuel Wood Collection
· Not a valid reason on a large scale.
· These are localized activities and generally sustainable when managed properly.