Agriculture and Crop Sciences MCQs with Answers

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Agriculture and Crop Sciences Online MCQs with Answers

Which of the following is a staple crop commonly grown in tropical regions?
a) Wheat
b) Rice
c) Barley
d) Corn

Answer
b) Rice

What is the process of converting atmospheric nitrogen into a usable form for plants called?
a) Nitrogen fixation
b) Photosynthesis
c) Transpiration
d) Respiration

Answer
a) Nitrogen fixation

Which of the following practices involves the deliberate movement of livestock to different grazing areas?
a) Crop rotation
b) Irrigation
c) Transplanting
d) Pasture rotation

Answer
d) Pasture rotation

What is the primary function of herbicides in agriculture?
a) Control pests and diseases
b) Enhance soil fertility
c) Provide nutrients to plants
d) Suppress weed growth

Answer
d) Suppress weed growth

Which of the following is a method of asexual reproduction in plants?
a) Pollination
b) Germination
c) Grafting
d) Fertilization

Answer
c) Grafting

What is the process of removing undesirable characteristics from plants through selective breeding called?
a) Hybridization
b) Genetic modification
c) Germplasm conservation
d) Elimination of traits

Answer
d) Elimination of traits

Which of the following nutrients is required in the largest quantity by plants?
a) Nitrogen
b) Phosphorus
c) Potassium
d) Calcium

Answer
a) Nitrogen

What is the primary purpose of crop rotation?
a) Prevent soil erosion
b) Maximize crop yield
c) Enhance genetic diversity
d) Control pests and diseases

Answer
d) Control pests and diseases

Which of the following is a method of organic pest control that involves using natural predators?
a) Fertilization
b) Mulching
c) Integrated pest management
d) Companion planting

Answer
c) Integrated pest management

What is the process of transferring pollen from the male reproductive organ to the female reproductive organ in plants called?
a) Fertilization
b) Pollination
c) Germination
d) Transpiration

Answer
b) Pollination

Which of the following is a method of artificial pollination in crops?
a) Wind pollination
b) Insect pollination
c) Hand pollination
d) Self-pollination

Answer
c) Hand pollination

What is the process of preserving genetic material from plants called?
a) Seed storage
b) Germplasm conservation
c) Plant breeding
d) Crop cultivation

Answer
b) Germplasm conservation

Which of the following is a method of soil conservation that involves planting trees along the edges of fields?
a) Crop rotation
b) Terracing
c) Contour plowing
d) Windbreaks

Answer
d) Windbreaks

What is the primary purpose of fertilizers in agriculture?
a) Control pests and diseases
b) Enhance soil fertility
c) Provide nutrients to plants
d) Suppress weed growth

Answer
c) Provide nutrients to plants

Which of the following is a method of weed control that involves manually removing weeds from the field?
a) Herbicide application
b) Mulching
c) Mechanical cultivation
d) Crop rotation

Answer
c) Mechanical cultivation

What is the process of transferring pollen from the anther to the stigma within the same flower called?
a) Cross-pollination
b) Self-pollination
c) Wind pollination
d) Insect pollination

Answer
b) Self-pollination

Which of the following is a method of pest control that involves the use of chemicals to kill pests?
a) Biological control
b) Integrated pest management
c) Pesticide application
d) Crop rotation

Answer
c) Pesticide application

What is the process of transferring a part of a plant to a different plant to combine desirable traits called?
a) Pollination
b) Hybridization
c) Transplanting
d) Grafting

Answer
d) Grafting

Which of the following is a method of water conservation in agriculture?
a) Irrigation
b) Terracing
c) Mulching
d) Fertilization

Answer
c) Mulching

What is the primary purpose of pesticides in agriculture?
a) Enhance soil fertility
b) Control pests and diseases
c) Provide nutrients to plants
d) Suppress weed growth

Answer
b) Control pests and diseases

Which of the following is a method of controlling pests that involves using natural enemies of the pests?
a) Chemical control
b) Mechanical control
c) Biological control
d) Genetic control

Answer
c) Biological control

What is the process of transferring seedlings from a nursery to the field called?
a) Transpiration
b) Transplanting
c) Germination
d) Photosynthesis

Answer
b) Transplanting

Which of the following is a method of soil conservation that involves creating level platforms on steep slopes?
a) Crop rotation
b) Terracing
c) Contour plowing
d) Windbreaks

Answer
b) Terracing

What is the process of removing weeds from the field using specialized equipment called?
a) Irrigation
b) Cultivation
c) Harvesting
d) Pruning

Answer
b) Cultivation

Which of the following is a method of genetic modification in crops?
a) Transpiration
b) Hybridization
c) Grafting
d) Genetic engineering

Answer
d) Genetic engineering

What is the primary purpose of crop residue management?
a) Enhance soil fertility
b) Control pests and diseases
c) Prevent soil erosion
d) Suppress weed growth

Answer
c) Prevent soil erosion

Which of the following is a method of irrigation that involves flooding the fields with water?
a) Drip irrigation
b) Sprinkler irrigation
c) Subsurface irrigation
d) Furrow irrigation

Answer
d) Furrow irrigation

What is the process of removing mature crops from the field called?
a) Cultivation
b) Germination
c) Harvesting
d) Pruning

Answer
c) Harvesting

Which of the following is a method of crop storage that involves drying the harvested crop in the sun?
a) Fermentation
b) Curing
c) Threshing
d) Sun drying

Answer
d) Sun drying

What is the primary purpose of cover crops in agriculture?
a) Provide shade to crops
b) Control pests and diseases
c) Enhance soil fertility
d) Suppress weed growth

Answer
c) Enhance soil fertility

Which of the following is a method of weed control that involves covering the soil with a layer of organic material?
a) Mulching
b) Herbicide application
c) Mechanical cultivation
d) Crop rotation

Answer
a) Mulching

What is the process of removing unwanted plant parts to improve the growth and yield of crops called?
a) Irrigation
b) Pruning
c) Transplanting
d) Pollination

Answer
b) Pruning

Which of the following is a method of protecting crops from birds and pests using nets or covers?
a) Fertilization
b) Mulching
c) Netting
d) Companion planting

Answer
c) Netting

What is the primary purpose of greenhouses in agriculture?
a) Control pests and diseases
b) Enhance soil fertility
c) Provide shade to crops
d) Extend the growing season

Answer
d) Extend the growing season

Which of the following is a method of seed propagation in plants?
a) Transpiration
b) Grafting
c) Transplanting
d) Germination

Answer
d) Germination

What is the process of separating the edible part of a harvested crop from the rest of the plant called?
a) Cultivation
b) Harvesting
c) Pruning
d) Threshing

Answer
d) Threshing

Which of the following is a method of water conservation that involves applying water directly to the roots of plants?
a) Drip irrigation
b) Sprinkler irrigation
c) Flood irrigation
d) Furrow irrigation

Answer
a) Drip irrigation

What is the process of protecting crops from pests and diseases using biological agents called?
a) Genetic modification
b) Integrated pest management
c) Chemical control
d) Mechanical control

Answer
b) Integrated pest management

Which of the following is a method of controlling pests that involves the use of physical barriers?
a) Biological control
b) Mechanical control
c) Chemical control
d) Genetic control

Answer
b) Mechanical control

What is the primary purpose of soil testing in agriculture?
a) Enhance soil fertility
b) Control pests and diseases
c) Prevent soil erosion
d) Determine nutrient deficiencies

Answer
d) Determine nutrient deficiencies

Which of the following is a method of crop storage that involves fermenting the harvested crop?
a) Curing
b) Threshing
c) Sun drying
d) Fermentation

Answer
d) Fermentation

What is the process of removing excess water from the field called?
a) Irrigation
b) Drainage
c) Transplanting
d) Pollination

Answer
b) Drainage

Which of the following is a method of crop storage that involves preserving the harvested crop by drying and curing?
a) Fermentation
b) Curing
c) Threshing
d) Sun drying

Answer
b) Curing

What is the primary purpose of crop scouting in agriculture?
a) Control pests and diseases
b) Enhance soil fertility
c) Monitor crop growth
d) Suppress weed growth

Answer
c) Monitor crop growth

Which of the following is a method of controlling pests that involves the use of pheromones to disrupt their mating patterns?
a) Chemical control
b) Mechanical control
c) Genetic control
d) Pheromone control

Answer
d) Pheromone control

What is the process of breaking up soil clumps and creating a suitable seedbed called?
a) Irrigation
b) Cultivation
c) Harvesting
d) Pruning

Answer
b) Cultivation

Which of the following is a method of weed control that involves using a machine to cut down weeds?
a) Herbicide application
b) Mulching
c) Mechanical cultivation
d) Crop rotation

Answer
c) Mechanical cultivation

What is the process of protecting crops from pests and diseases using chemicals called?
a) Biological control
b) Integrated pest management
c) Chemical control
d) Mechanical control

Answer
c) Chemical control

Which of the following is a method of water conservation that involves capturing rainwater for irrigation?
a) Drip irrigation
b) Sprinkler irrigation
c) Rainwater harvesting
d) Furrow irrigation

Answer
c) Rainwater harvesting

What is the primary purpose of crop rotation?
a) Maximize crop yield
b) Control pests and diseases
c) Enhance genetic diversity
d) Prevent soil erosion

Answer
b) Control pests and diseases

Which of the following is a method of seed dispersal in plants?
a) Transpiration
b) Grafting
c) Transplanting
d) Wind dispersal

Answer
d) Wind dispersal

What is the process of removing the outer husk or shell from a harvested crop called?
a) Cultivation
b) Harvesting
c) Threshing
d) Pruning

Answer
c) Threshing

Which of the following is a method of controlling pests that involves altering the genetic makeup of the pests?
a) Biological control
b) Mechanical control
c) Genetic control
d) Chemical control

Answer
c) Genetic control

What is the primary purpose of soil amendments in agriculture?
a) Control pests and diseases
b) Enhance soil fertility
c) Prevent soil erosion
d) Determine nutrient deficiencies

Answer
b) Enhance soil fertility

Which of the following is a method of plant propagation that involves planting a part of the stem or root into the soil?
a) Transpiration
b) Grafting
c) Transplanting
d) Cutting

Answer
d) Cutting

What is the process of protecting crops from pests and diseases using physical barriers called?
a) Genetic modification
b) Integrated pest management
c) Physical control
d) Chemical control

Answer
c) Physical control

Which of the following is a method of controlling pests that involves the use of natural predators or parasites?
a) Chemical control
b) Biological control
c) Mechanical control
d) Genetic control

Answer
b) Biological control

What is the process of supplying water to plants to support their growth called?
a) Irrigation
b) Drainage
c) Transpiration
d) Pollination

Answer
a) Irrigation

Which of the following is a method of weed control that involves rotating different crops in the same field?
a) Mulching
b) Herbicide application
c) Mechanical cultivation
d) Crop rotation

Answer
d) Crop rotation

What is the primary purpose of soil erosion control measures in agriculture?
a) Control pests and diseases
b) Enhance soil fertility
c) Prevent soil erosion
d) Determine nutrient deficiencies

Answer
c) Prevent soil erosion

Which of the following is a method of controlling pests that involves physically removing the pests from the plants?
a) Chemical control
b) Biological control
c) Mechanical control
d) Genetic control

Answer
c) Mechanical control

What is the process of protecting crops from pests and diseases using cultural practices called?
a) Genetic modification
b) Integrated pest management
c) Cultural control
d) Chemical control

Answer
c) Cultural control

Which of the following is a method of water conservation in agriculture that involves applying water directly to the plant roots?
a) Drip irrigation
b) Sprinkler irrigation
c) Flood irrigation
d) Furrow irrigation

Answer
a) Drip irrigation

What is the process of removing pests and diseases from seeds before planting called?
a) Seed treatment
b) Transplanting
c) Germination
d) Pollination

Answer
a) Seed treatment

Which of the following is a method of weed control that involves covering the soil with plastic or fabric?
a) Mulching
b) Herbicide application
c) Mechanical cultivation
d) Crop rotation

Answer
a) Mulching

What is the primary purpose of organic farming practices?
a) Maximize crop yield
b) Control pests and diseases
c) Enhance soil fertility
d) Prevent soil erosion

Answer
c) Enhance soil fertility

Which of the following is a method of plant propagation that involves joining two different plant parts together?
a) Transpiration
b) Grafting
c) Transplanting
d) Cutting

Answer
b) Grafting

What is the process of removing excess moisture from the soil called?
a) Irrigation
b) Drainage
c) Transplanting
d) Pollination

Answer
b) Drainage

Which of the following is a method of controlling pests that involves altering the environment to make it less favorable for pests?
a) Biological control
b) Mechanical control
c) Cultural control
d) Chemical control

Answer
c) Cultural control

What is the primary purpose of soil pH adjustment in agriculture?
a) Control pests and diseases
b) Enhance soil fertility
c) Prevent soil erosion
d) Determine nutrient deficiencies

Answer
b) Enhance soil fertility

Which of the following is a method of controlling pests that involves the use of chemicals to kill pests?
a) Biological control
b) Mechanical control
c) Chemical control
d) Genetic control

Answer
c) Chemical control

What is the process of removing the outer covering of seeds before planting called?
a) Transpiration
b) Threshing
c) Transplanting
d) Scarification

Answer
d) Scarification

Which of the following is a method of water conservation in agriculture that involves capturing and storing rainwater for later use?
a) Drip irrigation
b) Sprinkler irrigation
c) Rainwater harvesting
d) Furrow irrigation

Answer
c) Rainwater harvesting

What is the process of providing plants with the necessary nutrients for growth called?
a) Irrigation
b) Fertilization
c) Transpiration
d) Pollination

Answer
b) Fertilization

Which of the following is a method of controlling pests that involves the use of genetically modified crops?
a) Biological control
b) Mechanical control
c) Genetic control
d) Chemical control

Answer
c) Genetic control

What is the primary purpose of crop protection practices in agriculture?
a) Maximize crop yield
b) Control pests and diseases
c) Enhance soil fertility
d) Prevent soil erosion

Answer
b) Control pests and diseases

Which of the following is a method of weed control that involves rotating crops in a specific sequence?
a) Mulching
b) Herbicide application
c) Mechanical cultivation
d) Crop rotation

Answer
d) Crop rotation

What is the process of transferring young plants from a seedbed to the field called?
a) Irrigation
b) Cultivation
c) Transplanting
d) Pruning

Answer
c) Transplanting

Which of the following is a method of controlling pests that involves the use of natural substances to repel pests?
a) Chemical control
b) Biological control
c) Mechanical control
d) Organic control

Answer
d) Organic control

What is the primary purpose of soil amendment in agriculture?
a) Control pests and diseases
b) Enhance soil fertility
c) Prevent soil erosion
d) Determine nutrient deficiencies

Answer
b) Enhance soil fertility

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