Explanation

• Afforestation is the process of planting trees on land that was not previously forested.
  • Helps increase green cover and reduce soil erosion.
  • Important for climate change mitigation and biodiversity.
  • Commonly done in degraded, barren, or desert areas.
  • Supports environmental sustainability and carbon sequestration.

Last verified on 06-02-2026

Explanation

• Bhagnari / Sibi Bhagnari is the largest breed of Zebu cattle (Bos indicus).
• Primarily used as a draught animal for plowing and heavy work.
• Also raised for beef production.
• Originates from Sibi region in Balochistan, Pakistan.
• Known for strength, size, and adaptability to hot climates.

Explanation

• Mulching is the practice of covering the soil surface with crop residues, straw, or organic material.
  • Helps retain soil moisture and reduce evaporation.
  • Prevents weed growth and soil erosion.
  • Improves soil fertility as organic mulches decompose.
  • Common in horticulture and crop fields.

Last verified on 06-02-2026

Explanation

• Older rice refers to rice that has been stored for some time after harvest.
• Its moisture content decreases, making it less sticky when cooked.
• Often considered less fresh, so it is cheaper in price.
• Popular for certain dishes like biryani due to better separation of grains.
• Storage can improve aroma and cooking quality in some varieties.

Last verified on 06-02-2026

Explanation

• Colostrum is the first milk produced by the mammary glands immediately after birth.
• Rich in antibodies, proteins, and nutrients.
• Helps boost immunity in newborns.
• Usually secreted for the first 2–3 days after parturition.
• Known as “liquid gold” due to its high nutritional value.

Last verified on 06-02-2026

Explanation

• Triticum aestivum is the scientific name of common wheat.
• It is a major staple crop grown worldwide.
• Used for flour, bread, and other food products.
• Cultivated in Rabi season in countries like Pakistan.
• Belongs to the Poaceae (grass) family.

Last verified on 06-02-2026

Explanation

• Arid agriculture refers to farming in dry or arid regions with low rainfall.
• Focuses on water conservation and drought-resistant crops.
• Common in deserts and semi-arid areas.
• Requires techniques like drip irrigation, mulching, and soil management.
• Helps sustain food production in harsh climates.

Last verified on 06-02-2026

Explanation

• TLC (Thin Layer Chromatography) is a technique used to separate and identify compounds in a mixture.
• Uses a thin layer of adsorbent (like silica gel) on a plate.
• Compounds move at different rates when a solvent passes through.
• Simple, quick, and cost-effective method.

Last verified on 06-02-2026

Explanation

• A hermaphrodite has both male and female reproductive organs.
• Can produce both eggs and sperm.
• Common in some plants, invertebrates, and fish.
• In humans, it is rare and medically referred to as intersex.
• Helps in reproduction when mates are scarce in some species.

Last verified on 06-02-2026

Explanation

• Deciduous plants shed their leaves during winter or dry seasons.
• Helps reduce water loss and survive harsh conditions.
• Common in temperate regions.
• Leaves usually regrow in spring.
• Important for timber, fruits, and ecological balance.

Last verified on 06-02-2026