Agriculture in Class 9 Science : Practice MCQ Questions & Answers with Explanations

Terrace farming reduces water runoff and prevents soil erosion on slopes.

Vermicomposting uses earthworms to convert organic waste into nutrient-rich compost.

Rohu is a commonly cultivated fish species in pisciculture.

Alfalfa is a nutritious fodder crop rich in protein and commonly fed to livestock.

Drip irrigation is highly effective for grape cultivation because it provides water directly to roots.

Manure improves soil texture, increases microbial activity, and is environmentally friendly.

Compost is an organic manure produced by decomposition of plant and animal waste.

Vitamin D deficiency causes rickets, leading to weak bones and skeletal deformities.

Crossbreeding combines desirable traits from different breeds to improve livestock quality.

Jersey cows are known for high milk production and rich butterfat content.

Rhizobium fixes atmospheric nitrogen and improves soil fertility naturally.

Green manure improves soil fertility by adding organic matter and nutrients.

Drip irrigation supplies water directly to plant roots with minimal wastage.

Mulching helps retain soil moisture and reduce evaporation.

Kharif crops are grown during the rainy season.

Canal irrigation distributes water through a network of canals to agricultural fields.

Organic farming relies on natural fertilizers and biofertilizers instead of synthetic chemicals.

Crop rotation involves growing different crops in a planned sequence to maintain soil fertility.

Maize is a Kharif crop grown during the rainy season.