Environmental pollution and associated hazards to crops, animals and humans
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Question No. 1
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Which pollutant causes 'Itai-Itai' disease in humans through contaminated rice crops?
A.
Mercury
B.
Cadmium
C.
Arsenic
D.
Lead
Question No. 2
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Acid rain primarily results from atmospheric pollution by:
A.
CFCs and methane
B.
Sulfur dioxide and nitrogen oxides
C.
Carbon monoxide and ozone
D.
Particulate matter and radon
Question No. 3
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Bioaccumulation of DDT in birds causes:
A.
Respiratory failure
B.
Thinning of eggshells
C.
Liver cirrhosis
D.
Neurological disorders
Question No. 4
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Minamata disease is caused by consumption of seafood contaminated with:
A.
Lead
B.
Mercury
C.
Cadmium
D.
Chromium
Question No. 5
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Eutrophication in water bodies is triggered by excess:
A.
Heavy metals
B.
Oil spills
C.
Nitrates/phosphates
D.
Radioactive waste
Question No. 6
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Cattle in fluoride-polluted areas develop:
A.
Blue baby syndrome
B.
Dental/skeletal fluorosis
C.
Methemoglobinemia
D.
Blackfoot disease
Question No. 7
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Tropospheric ozone pollution primarily affects crops by:
A.
Increasing photosynthesis
B.
Causing leaf chlorosis and reduced yield
C.
Enhancing root growth
D.
Accelerating seed germination
Question No. 8
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Chronic arsenic poisoning via contaminated groundwater causes:
A.
Minamata disease
B.
Blackfoot disease
C.
Blue baby syndrome
D.
Itai-Itai disease
Question No. 9
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Thermal pollution from power plants mainly impacts aquatic life by:
A.
Increasing dissolved oxygen
B.
Reducing metabolic rates
C.
Decreasing oxygen solubility
D.
Enhancing nutrient absorption
Question No. 10
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Which heavy metal causes 'Anaemia' and 'Neurotoxicity' in humans through vegetable contamination?
A.
Cadmium
B.
Lead
C.
Mercury
D.
Nickel
Question No. 11
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Algal toxins (e.g., microcystin) from eutrophic waters can kill livestock through:
A.
Respiratory arrest
B.
Liver failure
C.
Cardiac arrest
D.
Kidney damage
Question No. 12
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Photochemical smog harms humans primarily by:
A.
Damaging the ozone layer
B.
Causing skin cancer
C.
Aggravating asthma/respiratory diseases
D.
Inducing genetic mutations
Question No. 13
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Radioactive strontium-90 from nuclear accidents accumulates in:
A.
Fish bones
B.
Milk and bones
C.
Grain crops
D.
Atmospheric dust
Question No. 14
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Silicon-based air pollutants (e.g., from mining) cause 'Silicosis' in humans by damaging the:
A.
Liver
B.
Kidneys
C.
Lungs
D.
Nervous system
Question No. 15
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Excess nitrate in drinking water causes 'Blue Baby Syndrome' by:
A.
Damaging kidneys
B.
Inhibiting oxygen transport
C.
Causing bone deformities
D.
Triggering neurological disorders
Question No. 16
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Which pollutant causes 'Chlorosis' and 'Necrosis' in plants by disrupting chlorophyll synthesis?
A.
Ozone
B.
Sulfur dioxide
C.
Peroxyacetyl nitrate
D.
Carbon monoxide
Question No. 17
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Biomagnification of PCBs affects marine mammals by causing:
A.
Reproductive failure
B.
Impaired vision
C.
Respiratory diseases
D.
Diabetes
Question No. 18
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Endosulfan pesticide exposure is linked to:
A.
Enhanced crop immunity
B.
Neurotoxicity and birth defects
C.
Soil fertility improvement
D.
Reduced pest resistance
Question No. 19
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Particulate matter (PM2.5) primarily enters the human body through:
A.
Skin absorption
B.
Ingestion
C.
Inhalation
D.
Osmosis
Question No. 20
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Fly ash from coal plants contaminates crops with:
A.
Radon
B.
Selenium and arsenic
C.
CFCs
D.
Dioxins
Question No. 21
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Oil spills harm marine birds by:
A.
Increasing buoyancy
B.
Enhancing feather insulation
C.
Destroying waterproofing of feathers
D.
Promoting algal growth
Question No. 22
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Excess copper in soil (from smelting) causes:
A.
Improved seed germination
B.
Chlorosis and root stunting
C.
Enhanced nitrogen fixation
D.
Drought resistance
Question No. 23
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Which gas emitted by landfills causes explosions and displaces oxygen in soils?
A.
Carbon dioxide
B.
Methane
C.
Ammonia
D.
Hydrogen sulfide
Question No. 24
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Chronic noise pollution affects wildlife by:
A.
Increasing reproduction rates
B.
Disrupting communication and mating
C.
Enhancing foraging efficiency
D.
Reducing predation
Question No. 25
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Perfluorooctanoic acid (PFOA) contamination is associated with:
A.
Enhanced soil fertility
B.
Thyroid disorders and cancer
C.
Improved water clarity
D.
Increased crop yields
Question No. 26
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Which disease affects rice plants due to sulfur dioxide pollution?
A.
Tungro
B.
Blast
C.
Leaf blight
D.
Black spot
Question No. 27
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Radon gas in homes primarily increases risk of:
A.
Skin cancer
B.
Leukemia
C.
Lung cancer
D.
Liver cancer
Question No. 28
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Livestock in cadmium-polluted regions suffer from:
A.
Mottled teeth
B.
Anemia and renal failure
C.
Goiter
D.
Photophobia
Question No. 29
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Ozone layer depletion increases UV exposure, causing:
A.
Higher plant growth rates
B.
Cataracts and skin cancer
C.
Improved vitamin D synthesis
D.
Enhanced marine photosynthesis
Question No. 30
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Which pollutant causes 'Yokkaichi Asthma' in humans?
A.
Asbestos
B.
Sulfur dioxide
C.
Formaldehyde
D.
Benzene
Question No. 31
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DDT in aquatic ecosystems accumulates in fish tissues, leading to:
A.
Increased growth rates
B.
Higher reproductive success
C.
Tumor formation
D.
Endocrine disruption
Question No. 32
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Lead toxicity in urban children is linked to:
A.
Enhanced cognitive development
B.
Hyperactivity and learning disabilities
C.
Improved bone density
D.
Better immune response
Question No. 33
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Which pollutant from burning plastics causes 'Dioxin poisoning'?
A.
Polyethylene
B.
Polystyrene
C.
PVC
D.
Polypropylene
Question No. 34
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Fluorosis in cattle is endemic near industries producing:
A.
Textiles
B.
Fertilizers and aluminum
C.
Paper
D.
Cement
Question No. 35
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Excess boron in irrigation water causes:
A.
Improved fruit sweetness
B.
Leaf tip burn and reduced yield
C.
Enhanced root growth
D.
Disease resistance
Question No. 36
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Microplastics in oceans enter the human food chain via:
A.
Airborne particles
B.
Contaminated vegetables
C.
Fish/shellfish consumption
D.
Soil absorption
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