Which of the following is an essential nutrient for plant growth?
A) Nitrogen
B) Carbon dioxide
C) Oxygen
D) Hydrogen
What is the primary purpose of crop rotation in agriculture?
A) Increase crop yield
B) Improve soil fertility
C) Control pests
D) Reduce water usage
Which process is used to convert atmospheric nitrogen into a form plants can use?
A) Photosynthesis
B) Nitrogen fixation
C) Fermentation
D) Respiration
What is the main source of energy for photosynthesis?
A) Water
B) Soil nutrients
C) Sunlight
D) Oxygen
Which of the following is a genetically modified crop?
A) Wheat
B) Golden rice
C) Corn
D) Oats
Which type of farming focuses on producing crops and livestock without synthetic inputs?
A) Conventional farming
B) Organic farming
C) Precision farming
D) Industrial farming
What is the primary benefit of using fertilizers in agriculture?
A) Control pests
B) Improve soil structure
C) Enhance plant growth
D) Conserve water
Which farming technique minimizes soil erosion by not tilling the land?
A) Crop rotation
B) No-till farming
C) Slash-and-burn
D) Irrigation farming
Which of the following is a sustainable agricultural practice?
A) Monoculture
B) Pesticide overuse
C) Crop diversification
D) Soil depletion
The process of selectively breeding plants for desirable traits is called:
A) Genetic modification
B) Natural selection
C) Hybridization
D) Cross-pollination
Which bacteria help plants fix nitrogen from the atmosphere?
A) E. coli
B) Rhizobium
C) Streptococcus
D) Bacillus
What is the main reason for using drip irrigation?
A) Increase soil fertility
B) Reduce water usage
C) Maximize pest control
D) Increase sunlight exposure
Which of the following is NOT a macronutrient needed by plants?
A) Phosphorus
B) Potassium
C) Iron
D) Nitrogen
Which agricultural practice helps conserve water by growing crops suited to dry conditions?
A) Agroforestry
B) Xericulture
C) Hydroponics
D) Silviculture
Which gas is produced by the fermentation of sugars during the production of biofuels?
A) Nitrogen
B) Carbon dioxide
C) Methane
D) Oxygen
What is the term for using natural predators to control pests?
A) Genetic engineering
B) Biological control
C) Chemical control
D) Crop rotation
Which of the following is a leguminous crop that enriches soil nitrogen?
A) Wheat
B) Corn
C) Soybean
D) Rice
Which of the following contributes most to soil erosion?
A) Crop rotation
B) Overgrazing
C) Mulching
D) Conservation tillage
Which of the following can reduce the environmental impact of agriculture?
A) Over-irrigation
B) Precision farming
C) Pesticide overuse
D) Monocropping
Which vitamin is enhanced in genetically modified golden rice?
A) Vitamin A
B) Vitamin B12
C) Vitamin C
D) Vitamin D
What is the main function of chlorophyll in plants?
A) Absorb water
B) Absorb sunlight
C) Produce oxygen
D) Fix nitrogen
Which type of pest control involves the use of chemicals?
A) Cultural control
B) Biological control
C) Integrated pest management
D) Chemical control
Which of the following is an example of a micronutrient for plants?
A) Nitrogen
B) Phosphorus
C) Zinc
D) Potassium
Which of the following crops is most likely to be grown using hydroponic systems?
A) Rice
B) Corn
C) Lettuce
D) Wheat
Which agricultural practice helps maintain soil fertility by alternating crops?
A) Monoculture
B) Crop rotation
C) Genetic modification
D) Fertilizer overuse
Which of the following is an example of a renewable agricultural resource?
A) Fossil fuels
B) Water
C) Minerals
D) Natural gas
The main cause of soil salinization in agricultural fields is:
A) Excessive fertilizer use
B) Over-irrigation
C) Use of pesticides
D) Crop rotation
Which type of agriculture involves growing crops in nutrient-rich water without soil?
A) Xericulture
B) Hydroponics
C) Agroforestry
D) Silviculture
Which practice can help prevent the overuse of pesticides?
A) Chemical farming
B) Monocropping
C) Integrated pest management
D) Excessive irrigation
Which type of farming reduces the need for chemical inputs by managing farm ecosystems?
A) Organic farming
B) Industrial farming
C) Precision farming
D) Genetic engineering
What is the purpose of a windbreak in agriculture?
A) Reduce soil erosion
B) Increase water usage
C) Maximize sunlight exposure
D) Enhance crop yield
What type of farming combines forestry with agriculture to improve biodiversity?
A) Silviculture
B) Hydroponics
C) Agroforestry
D) Monoculture
What is the primary goal of precision farming?
A) Increase pesticide use
B) Maximize water usage
C) Optimize resource use
D) Increase fossil fuel consumption
Which nutrient is most commonly added to soil through the use of fertilizers?
A) Nitrogen
B) Calcium
C) Magnesium
D) Sulfur
Which of the following is a benefit of using cover crops in agriculture?
A) Decrease soil fertility
B) Reduce soil erosion
C) Increase pesticide use
D) Decrease water retention
