All Free Agriculture MCQs with Answers

• A. 1893 AD
• B. 1880 AD
• C. 1793 AD
• D. 1650 AD

Explanation: Eli Whitney invented the cotton gin, the first important cotton-ginning machine, in 1793.

• A. 1430 AD
• B. 1435 AD
• C. 1530 AD
• D. 1500 AD

Explanation: Cotton is recorded as having been imported into England around 1430 AD.

• A. Central and North America
• B. Central and South America
• C. Central and South Asia
• D. North Mexico and North America

Explanation: Gossypium barbadense, the species that includes Egyptian and Pima cottons, originated in Central and South America.

• A. Hirsutum
• B. Triticum
• C. Gassypium
• D. Hordeunt

Explanation: The cotton genus is correctly spelled Gossypium, although option c has a spelling error as “Gassypium.” Triticum is the wheat genus and…

• A. Malvaceae
• B. Fabaceae
• C. Gramineae
• D. Leguminaceae

Explanation: Cotton belongs to the family Malvaceae, which also includes okra, hibiscus and kenaf.

• A. Sugarcane
• B. Cotton
• C. Sesame
• D. Jute

Explanation: Cotton is Pakistan’s principal natural-fibre and major cash crop, supplying the textile industry.

• A. Fertilizers and pesticides are widely used
• B. Fertilizers and pesticides are net used
• C. Farm yard manure r not used
• D. Green manuring

Explanation: Organic farming avoids synthetic fertilizers and chemical pesticides and relies on practices such as farmyard manure, compost, crop…

• A. Alpine vegetation
• B. Tundra vegetation
• C. Conferous vegetation
• D. None of the above

Explanation: Alpine vegetation occurs near or above the tree line on high mountains and consists mainly of short grasses, herbs and cushion plants.

• A. Mesophytes
• B. Amphibiophytes
• C. Xerophytes
• D. Hydrophytes

Explanation: Mesophytes grow under moderate moisture conditions, neither the severe dryness preferred by xerophytes nor the waterlogged conditions…

• A. Mesophytes
• B. Xerophytes
• C. Hydrophytes
• D. Aridic plants

Explanation: Xerophytes are adapted to arid or drought-prone regions through features such as deep roots, reduced leaves, thick cuticles or water…

• A. Top dressing
• B. Broadcasting
• C. Basal application
• D. Drilling

Explanation: Fertilizer placed in the soil before or at sowing to support early crop growth is called basal application.

• A. Zero tillage
• B. Minimum tillage
• C. Secondary tillage
• D. None of the above

Explanation: Zero tillage means sowing directly into untilled soil, usually with a specialized seed drill.

• A. 1%
• B. 10.3%
• C. 0.03%
• D. 0.002%

Explanation: Carbon dioxide makes up about 0.03% of atmospheric air, although its present average concentration is slightly higher.

• A. Bacteria
• B. Fungi
• C. Ferm
• D. None of the above

Explanation: Azolla is a small aquatic fern that houses nitrogen-fixing Anabaena in its leaf cavities.

• A. Condition of cell membrane
• B. Cracking of seed test
• C. None of the above
• D. Both a & b

Explanation: Electrolyte leakage rises when cell membranes are damaged or when seed-coat cracking allows cellular solutes to escape into water.

• A. Quantitative basis
• B. Both a & b
• C. Qualitative basis
• D. None of the above

Explanation: Rice seedling vigor can be judged quantitatively through germination percentage, seedling length and dry weight, and qualitatively through…

• A. Mature seeds
• B. Abnormal seeds
• C. Immature seed?
• D. All the above

Explanation: Immature seeds often have incompletely developed membranes and consequently release more electrolytes, producing higher leachate…

• A. None of the above
• B. Low density grain
• C. Both a & b
• D. High density grain

Explanation: High-density, well-filled rice grains usually have greater stored reserves and produce more vigorous seedlings.

• A. Top of panicle
• B. Middle of panicle
• C. Bottom of panicle
• D. All the above

Explanation: In rice panicles, grains near the top generally flower earlier and receive assimilates earlier, so they are often heavier and better…

• A. Sequential cropping
• B. Strip cropping
• C. Multiple cropping
• D. All the above

Explanation: Growing two or more crops on the same land during a specified period is called multiple cropping.