Explanation

• Hijaaz is a historical region in western Arabia along the Red Sea.
• Major cities in Hijaaz include Makkah, Medina, and Ta‘if.
• It is known for its mountainous terrain and desert climate.

Last verified on 01-02-2026

Explanation

• During Prophet Muhammad ﷺ’s early business trips for Hazrat Khadija (RA), he was often accompanied by trusted servants.
  • Maisra was the servant who traveled with him and helped manage trade and goods safely.
  • These trips helped build Prophet ﷺ’s reputation for honesty and trustworthiness.

Last verified on 01-02-2026

Explanation

• CSS stands for Central Superior Services.
• It is a civil service examination and recruitment process in Pakistan for high-ranking government positions.

Last verified on 01-02-2026

Explanation

• Human body cells renew at different rates depending on function and wear.
• Gut cells (intestinal epithelial cells) are the most rapidly replacing cells, regenerating every 2–5 days.

Last verified on 01-02-2026

Explanation

• Wastewater generated from industrial processes contains chemicals, toxins, and organic matter.
• This wastewater is called effluent.
• Proper treatment of effluent is essential to prevent water pollution and environmental damage.

Last verified on 01-02-2026

Explanation

Explanation

• CIMMYT stands for International Maize and Wheat Improvement Center.
• It is a global agricultural research organization.

Additional information:

• Headquarters: El Batán, Mexico
• Founded: 1966

Last verified on 25-01-2026

Explanation

• The Green Revolution (1960s–1970s) introduced high-yielding varieties, fertilizers, and modern irrigation in agriculture.
• It led to a major increase in rice and wheat production, especially in Asia.
• The revolution helped reduce food shortages and improve food security.

Last verified on 01-02-2026

Explanation

• Swelling of the udder in cows is usually caused by inflammation or infection of the mammary gland.
• This condition is called mastitis.
• It affects milk production, quality, and animal health.

Last verified on 01-02-2026

Explanation

• Citrus fruits are rich in Vitamin C, which is essential for immunity.
• Vitamin C also helps in wound healing, collagen formation, and iron absorption.
• Citrus fruits include oranges, lemons, limes, and grapefruits.

Last verified on 25-01-2026