Explanation

• Birds have hollow (pneumatic) bones to make their skeleton lighter, aiding flight efficiency.
• Hollow bones reduce overall body weight without sacrificing strength.
• This adaptation is crucial for sustained flying and gliding.

Last verified on 09-02-2026

Explanation

• Stomata are small openings on leaf surfaces for gas exchange.
• Present more on the lower side to reduce water loss (transpiration).
• Helps plants retain moisture while still taking in CO₂ for photosynthesis.
• Upper side has fewer stomata to avoid direct sun exposure.
• Found in most dicot leaves.

Last verified on 07-02-2026

Explanation

The world’s fastest bird is the Peregrine Falcon (Falco peregrinus)

It is the fastest animal on the planet

Reaching diving speeds (hunting stoop) of over 320 km/h (200 mph),

Additional information:

Fastest Running Bird: Ostrich (up to 43 mph). 

Explanation

• Arachnids are a class of arthropods including spiders, scorpions, ticks, and mites.
• They have 4 pairs of legs (total 8 legs).
• Arachnids lack antennae and wings.
• Example: Spider, Scorpion, Tick, Mite, Harvestman

Last verified on 07-02-2026

Explanation

• A predator is a free-living animal that catches and kills another animal.
  • It feeds on other organisms for energy.
  • This relationship is called predation.
  • Common in natural food chains.
  • Predators help control prey populations.
  • Example: Lion, Tiger, Wolf, Eagle, Shark

Last verified on 06-02-2026

Explanation

Explanation

• Apiculture is the practice of rearing honeybees for honey and wax production.
• Helps in pollination and increasing crop yields.
• Honey, beeswax, and propolis are valuable products from apiculture.

• Sericulture → Rearing of silk worms.
• Silviculture → Cultivation of trees and forests.

Last verified on 30-01-2026

Explanation

A species that no longer lives anywhere on the earth is called extinct.

This term refers to a species that has no living individuals remaining on the planet, often determined when the last surviving member dies. 

Examples: Well-known examples include the dinosaur, the woolly mammoth, and the passenger pigeon.

Explanation

Drought causes reduced rainfall, drying out soil and plants.

Dry vegetation becomes highly flammable, increasing wildfire risk.

High temperatures further intensify fire outbreaks.

These factors together make wildfires more frequent and severe.

Therefore, drought-induced wildfires occur due to all of these factors

Explanation

Drought causes reduced rainfall, drying out soil and plants.

Dry vegetation becomes highly flammable, increasing wildfire risk.

High temperatures further intensify fire outbreaks.

These factors together make wildfires more frequent and severe.

Therefore, drought-induced wildfires occur due to all of these factors