Explanation

• Sour citrus varieties, including sour oranges and related citrus fruits.
• Khyber Pakhtunkhwa is known for citrus production in areas such as Malakand and Swat.
• Citrus cultivation depends on suitable temperatures, soil conditions, and water availability.

Last verified on 16-10-2026

Explanation

• Carbamate and organophosphate insecticides mainly affect the nervous system by inhibiting the enzyme acetylcholinesterase.
• This causes acetylcholine to accumulate at nerve junctions, leading to continuous nerve stimulation, paralysis, and potentially death.
• These insecticides can also be toxic to humans and other animals, so proper handling and protective equipment are essential.

Last verified on 16-10-2026

Explanation

• Approximately 80,000 setts per hectare is a possible recommended figure.
• Sugarcane setts are pieces of sugarcane stalk containing buds used for planting and propagation.
• The number of setts required per hectare depends on row spacing, sett length, number of buds, and planting method.

Last verified on 16-10-2026

Explanation

• Predator-prey: One organism (the predator) hunts, kills, and directly eats another living organism (the prey) for food.
• Example: A lion hunting and eating a zebra.

Additional information:

• Parasitism: One organism (the parasite) lives on or inside another organism (the host) and feeds off it. It harms the host but usually does not kill it right away.
• Example: Fleas drinking blood from a dog.
• Mutualism: A close relationship where both organisms help each other and benefit.
• Example: Bees collecting nectar while pollinating flowers.

Last verified on 16-10-2026

Explanation

• Tropical regions generally have high temperatures, abundant rainfall, and high humidity, especially near the equator.

Additional information:

• Arid regions are dry and receive very little rainfall.
• Polar regions have extremely low temperatures and generally low precipitation.

Last verified on 16-10-2026

Explanation

• In 1980, the Pakistan Agricultural Research Council (PARC) divided Pakistan into 10 agro-ecological zones.
• The classification was based on physiography, climate, soil, land use, and water availability.
• These zones help identify suitable crops and agricultural practices for different regions of Pakistan.

Last verified on 16-10-2026

Explanation

• Anti-dunes are bedforms that develop under supercritical flow conditions, where the Froude number is greater than 1.
• The Froude number is the ratio of flow inertia to the effect of gravity.

Additional information:

• Fr<1: Subcritical flow.
• Fr=1: Critical flow.
• Fr>1: Supercritical flow.

Last verified on 16-10-2026

Explanation

• Camshaft: Controls the opening and closing of the intake and exhaust valves at the correct time.

Additional information:

• Crankshaft: Converts the pistons’ reciprocating motion into rotational motion.
• Flywheel: Stores rotational energy and helps maintain smooth engine operation.

Last verified on 16-10-2026

Explanation

Explanation

جوش ملیح آبادی کو انقلابی خیالات اور جوشیلی شاعری کی وجہ سے "شاعرِ انقلاب" کہا جاتا ہے۔

ان کی شاعری میں آزادی، بغاوت، اور قومی غیرت کے جذبات نمایاں ہوتے ہیں۔

Last verified on 03-06-2026