#1
Which of the following is not a greenhouse gas?
Oxygen
ExplanationOxygen is not considered a greenhouse gas because it does not contribute to the greenhouse effect.
#2
Which of the following is a leguminous crop?
Soybean
ExplanationLeguminous crops like soybeans have nitrogen-fixing bacteria in their root nodules, enriching the soil with nitrogen.
#3
What is the process of transferring pollen from the male reproductive organs to the female reproductive organs of a flower called?
Pollination
ExplanationPollination is the transfer of pollen from the male reproductive organs (anthers) to the female reproductive organs (stigma) of a flower, enabling fertilization and subsequent seed and fruit production.
#4
What is the term for the process of artificially providing water to crops?
Irrigation
ExplanationIrrigation is the artificial application of water to land or soil to assist in the growth of crops.
#5
Which of the following is a disease commonly affecting tomato plants?
Late blight
ExplanationLate blight is a fungal disease that affects tomato plants, causing dark, irregular lesions on leaves, stems, and fruit, ultimately leading to plant death.
#6
What is the primary purpose of crop rotation?
To control pests and diseases
ExplanationCrop rotation helps to prevent the buildup of pests and diseases in the soil by alternating crops.
#7
Which of the following is a method of organic farming?
Crop rotation
ExplanationCrop rotation is a common practice in organic farming to maintain soil health and fertility.
#8
What does IPM stand for in agriculture?
Integrated Pest Management
ExplanationIPM combines various pest control methods to minimize environmental impact and economic costs.
#9
What is aquaponics?
Agricultural practice combining aquaculture and hydroponics
ExplanationAquaponics is a sustainable farming method that combines raising fish (aquaculture) and growing plants without soil (hydroponics) in a symbiotic environment.
#10
Which of the following is a non-renewable resource used in agriculture?
Fossil fuels
ExplanationFossil fuels, such as gasoline and diesel, are non-renewable resources commonly used in agriculture for powering machinery and vehicles.
#11
Which of the following is a greenhouse gas produced by livestock?
Methane
ExplanationLivestock, particularly ruminants like cows, produce methane during digestion, contributing to greenhouse gas emissions.
#12
What is the term for the process of removing salt from seawater to make it usable for irrigation?
Desalination
ExplanationDesalination is the process of removing salt and other minerals from seawater or brackish water to make it suitable for irrigation.
#13
What is the term for the process of converting atmospheric nitrogen into a form that plants can use?
Nitrogen fixation
ExplanationNitrogen fixation is the biological or industrial process by which atmospheric nitrogen is converted into ammonia or related nitrogenous compounds, which plants can utilize.