NCERT Solutions for Class 8 Science Chapter 7
Important NCERT Questions
8th Chapter 7 Conservation of Plants and Animals
NCERT Books for Session 2022-2023
CBSE Board and State Board
Questions No: 5 Part: d
What are the causes and consequences of deforestation?
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The main cause of deforestation is growing urbanization and industrialization. Need for more land and resources have led to the cutting down of forests. The consequences of deforestation are desertification and natural calamities. It has also rendered many species of plants and animals unprotected and un-conserved.
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Deforestation, driven by various human activities, results in significant environmental and social consequences:
Causes of Deforestation:
1. Agricultural Expansion: Clearing forests for farming purposes, especially for cash crops and livestock grazing, contributes substantially to deforestation.
2. Logging Activities: Extensive logging for timber, paper production, and wood-based goods remains a prominent cause of forest clearance.
3. Urbanization and Infrastructure Development: Expanding urban areas, constructing roads, and building infrastructure require forest land clearing.
4. Mining and Extraction: Extraction industries necessitate clearing forests for resource exploration, affecting large forested regions.
5. Wildfires and Overgrazing: Uncontrolled fires and excessive grazing by livestock degrade forest cover, accelerating deforestation.
6. Illegal Practices: Unauthorized logging, hunting, and encroachments contribute significantly to forest loss.
Consequences of Deforestation:
1. Biodiversity Decline: Habitat destruction leads to the loss of numerous plant and animal species, impacting ecological diversity.
2. Climate Implications: Reduced tree cover releases stored carbon, contributing to greenhouse gas emissions and climate change.
3. Soil Depletion: Exposed soil is prone to erosion, leading to reduced fertility and agricultural productivity.
4. Water Cycle Disruption: Altered rainfall patterns affect water cycles, leading to droughts, floods, and water scarcity.
5. Economic Impact: Industries reliant on forests suffer, affecting livelihoods and global trade in forest-derived products.
6. Natural Disaster Vulnerability: Loss of forest cover heightens susceptibility to landslides and floods.
7. Health Concerns: Decline in medicinal plants affects traditional medicine and human health practices.
8. Social Displacement: Displacement of indigenous communities and conflicts arise due to the loss of ancestral lands.