Biodiversity

Concept: Biodiversity is most threatened by the destruction of natural habitats. Step 1:Understand primary threat.
Habitat loss (due to deforestation, urbanization, agriculture) leads to:

• Loss of shelter and food
• Disruption of ecosystems
• Eventual extinction of species

Step 2:Evaluate options.}

• Species extinction Result, not primary cause
• Reduced carrying capacity Secondary effect
• Biodiversity hotspots Areas of high diversity, not threat

Final Answer:

Concept: Olive ridley turtles are famous for their mass nesting behavior called arribada. Step 1:Identify key location.
The Odisha coast (especially Gahirmatha, Rushikulya, and Devi river mouth) hosts one of the largest nesting sites in the world.
Step 2:Eliminate incorrect options.}

• Goa coast Not a major nesting site
• Malabar coast Limited nesting activity
• Gulf of Kutch Not known for olive ridley arribada

Final Answer: