Impact of Weather on Crop & Livestock Production
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Question No. 1
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Which of the following weather conditions is most likely to cause 'lodging' in cereal crops?
A.
Prolonged drought
B.
Excessive sunshine and low humidity
C.
Strong winds combined with heavy rainfall
D.
Moderate temperature with consistent dew formation
Question No. 2
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What is the primary effect of high ambient temperatures on milk production in dairy cattle?
A.
Increased milk fat percentage
B.
Reduced feed intake and decreased milk yield
C.
Enhanced immune response
D.
Earlier onset of lactation
Question No. 3
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The phenomenon where a period of cold temperature is required for the flowering of certain plants is known as:
A.
Phototropism
B.
Thigmotropism
C.
Vernalization
D.
Stratification
Question No. 4
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Which weather extreme is most commonly associated with increased incidence of foot-and-mouth disease (FMD) outbreaks due to stress on livestock immunity?
A.
Mild summer
B.
Prolonged drought
C.
Consistent moderate rainfall
D.
Short, intense heatwaves
Question No. 5
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Excessive soil moisture caused by heavy rainfall can lead to 'anaerobic conditions' in the root zone, primarily inhibiting the uptake of which essential plant nutrient?
A.
Nitrogen
B.
Phosphorus
C.
Potassium
D.
Calcium
Question No. 6
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The 'shelterbelt' method of planting trees is primarily used to mitigate the adverse effects of which weather factor on crops and livestock?
A.
Hailstorms
B.
Frost
C.
Strong winds
D.
Drought
Question No. 7
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Which of the following crop diseases is known to be exacerbated by high humidity and prolonged leaf wetness?
A.
Bacterial wilt
B.
Powdery mildew
C.
Downy mildew
D.
Root knot nematode
Question No. 8
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Severe 'heat stress' in poultry can lead to a condition known as:
A.
Avian influenza
B.
Sudden death syndrome
C.
Ascites
D.
Panting and reduced egg production
Question No. 9
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The 'rabi' crops in India are typically sown during which season and primarily benefit from which type of weather?
A.
Summer; hot and humid
B.
Monsoon; heavy rainfall
C.
Winter; cool and dry
D.
Spring; warm and sunny
Question No. 10
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Which weather phenomenon is most directly responsible for 'chilling injury' in tropical and subtropical plants?
A.
Freezing temperatures below 0°C
B.
Temperatures above 40°C
C.
Temperatures between 0°C and 15°C but above freezing
D.
Prolonged periods of heavy cloud cover
Question No. 11
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What is the immediate impact of a 'hailstorm' on standing field crops?
A.
Increased nutrient absorption
B.
Physical damage, defoliation, and fruit scarring
C.
Enhanced photosynthesis
D.
Stimulation of early flowering
Question No. 12
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In regions prone to drought, which management practice is crucial for maintaining livestock health and productivity?
A.
Increasing stocking density
B.
Reducing supplementary feeding
C.
Implementing water conservation and alternative feed strategies
D.
Delaying animal health vaccinations
Question No. 13
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Which atmospheric gas, influenced by weather patterns, is a primary driver of photosynthesis in crops?
A.
Oxygen
B.
Nitrogen
C.
Carbon dioxide
D.
Methane
Question No. 14
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A sudden drop in temperature below freezing point, occurring after a warm spell, can be particularly damaging to fruit trees at which stage?
A.
Dormancy
B.
Leaf senescence
C.
Flowering or fruit set
D.
Root development
Question No. 15
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Which type of pest outbreak is often favored by prolonged periods of hot and dry weather in agricultural fields?
A.
Aphids
B.
Leaf miners
C.
Spider mites
D.
Slugs and snails
Question No. 16
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The term 'photoperiodism' in crop science refers to the plant's response to the duration of:
A.
Temperature fluctuations
B.
Light and darkness
C.
Soil moisture
D.
Wind velocity
Question No. 17
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In regions experiencing 'El Niño' events, what is the typical weather impact on agriculture in Southeast Asia and Australia?
A.
Increased rainfall and cooler temperatures
B.
Reduced rainfall and warmer temperatures
C.
More frequent hailstorms
D.
Stronger monsoon seasons
Question No. 18
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What is a common consequence of 'waterlogging' on crop root systems?
A.
Enhanced oxygen availability
B.
Reduced nutrient leaching
C.
Impaired root respiration and growth
D.
Increased mycorrhizal associations
Question No. 19
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Which protective measure is commonly employed in orchards to prevent frost damage to blossoms and young fruits?
A.
Deep plowing
B.
Overhead irrigation (sprinklers) during frost
C.
Heavy nitrogen fertilization
D.
Mulching with plastic sheets
Question No. 20
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Under conditions of severe 'drought', which physiological response do plants commonly exhibit to conserve water?
A.
Increased stomatal opening
B.
Enhanced cell turgor
C.
Stomatal closure and reduced transpiration
D.
Accelerated growth rate
Question No. 21
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What is the primary effect of 'smog' on crop plants in urban or industrial areas?
A.
Increased nutrient availability
B.
Reduced photosynthesis and growth due to air pollutants
C.
Enhanced seed germination
D.
Protection against insect pests
Question No. 22
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Livestock exposed to prolonged periods of 'cold stress' will primarily exhibit:
A.
Reduced feed intake and increased water consumption
B.
Increased metabolic rate and higher feed requirements
C.
Faster weight gain and improved reproductive performance
D.
Decreased risk of respiratory infections
Question No. 23
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Which weather-related factor is most critical for the successful completion of the 'flowering' stage in many agricultural crops?
A.
High wind speeds
B.
Specific temperature ranges and photoperiod
C.
Continuous heavy rainfall
D.
Low atmospheric pressure
Question No. 24
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The spread of 'vector-borne diseases' in livestock (e.g., blue tongue virus carried by midges) is often influenced by:
A.
Extremely low humidity
B.
Consistent strong winds
C.
Warm temperatures and stagnant water for vector breeding
D.
Prolonged periods of frost
Question No. 25
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What is the typical consequence of an 'early frost' for crops like cotton or maize that are still maturing?
A.
Accelerated maturation and increased yield
B.
Reduced fiber quality (cotton) or undeveloped grains (maize)
C.
Enhanced pest resistance
D.
Improved nutrient uptake from the soil
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