Environmental Studies · Biology
Environmental Health and Toxicology
1,658 Questions
Access targeted questions on environmental health, pollution impacts, and toxicology fundamentals. The topics cover the health effects of air pollution, radiation, and chemical exposure. This material is highly relevant for environmental science tests and general awareness sections of competitive exams.
Air pollution health effectsPesticide exposure risksOzone depletion impactsEnvironmental epidemiologySkin inflammation conditions
Environmental Health and Toxicology Questions
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Hypertension
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Anxiety
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Deafness
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Asthma
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Insomnia
D
Correct answer
Explanation
Asthma is a respiratory disorder; not caused by noise.
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hearing impairment
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skin disease
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mental disorder
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intestinal disease
A
Correct answer
Explanation
Noise pollution may cause hearing impairment.
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Cancer in mouth
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Acid rain corroding marble monuments
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Cancer in bone
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Cancer in animals
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Cancer in industrial workers
B
Correct answer
Explanation
Acid rain corroding marble structures and monuments is termed as marble cancer.
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fumes, if inhaled, cause immediate death
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there is an increase in the number of insects
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fumes released can cause cancer
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it reduces soil fertility
C
Correct answer
Explanation
The gases released by burning these fibres are toxic and carcinogenic also.
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bones to get brittle
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calcification of ligaments
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enlargement of brain tissue
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unexplained weight gain
B
Correct answer
Explanation
Fluorosis is a condition in which the body suffers due to excess fluoride. It causes staining of teeth, ligament calcification, severe skeletal abnormalities, poor digestion, etc.
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Lack of sleep
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Hypertension
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Anxiety
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Low blood pressure
D
Correct answer
Explanation
Low blood pressure is not caused due to noise pollution.
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Hypertension
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Anxiety
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Skin cancer
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Lack of sleep
C
Correct answer
Explanation
Presence of excessive noise in our surroundings may cause many health related problems like lack of sleep, hypertension, anxiety, etc. but it is not one of the many causes of skin cancer.
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Asthma
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Cough
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Wheezing
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Common cold
D
Correct answer
Explanation
Common cold is not caused by air pollution. It is a viral infectious disease of the upper respiratory tract which primarily affects the nose.
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Dust inhaled during years of exposure
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Dust inhales during years of exposure
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Dust is being inhaled during years of exposure
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Dust was inhaled during years of exposure
A
Correct answer
Explanation
"Dust inhaled during years of exposure" is a noun phrase where "inhaled" is a past participle modifying "dust" in a reduced relative clause. The other options are wrong: "inhales" would mean the dust performs the action, while the passive forms are unnecessarily wordy.
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minamata disease
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itai-itai disease
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black foot disease
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blue baby syndrome
B
Correct answer
Explanation
A pollution-related disease due to the accumulation of cadmium, characterised by pain in joints and bones, is itai-itai disease.
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The anesthetic toxicity advesely affects the nervous system
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Local anesthetic drugs do not affect the heart
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Toxicity can occur with any local anesthetics as an individual reaction by that patient
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Direct infiltration of local anesthetic into skeletal muscle will cause temporary paralysis of the muscle
B
Correct answer
Explanation
Local anesthetic drugs are toxic to the heart (where they cause arrhythmia) and brain (where they may cause unconsciousness and seizures). Arrhythmias may be resistant to defibrillation and other standard treatments, and may lead to loss of heart function and death.
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Lead (II) iodide
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Lead(II) nitrate
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Lead(II) oxide
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Lead dioxide
B
Correct answer
Explanation
Lead(II) nitrate is an inorganic compound with the chemical formula Pb(NO3)2. It commonly occurs as a colourless crystal or white powder and unlike most other lead(II) salts, it is soluble in water.Lead(II) nitrate is toxic and an oxidising agent and is categorised as probably carcinogenic to humans.
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Nitrogen dioxide
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Osmium tetroxide
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Palladium(II) chloride
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Palladium(II) nitrate
D
Correct answer
Explanation
Palladium(II) nitrate is a red-brown solid that is strongly oxidizing and may liberate noxious fumes upon reaction with reducing agents. It is a skin and respiratory irritant. It is normally stable at room temperature but decomposes at higher temperatures.
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Teratogen
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Cosmegen
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Trigen
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Carcinogen
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Zymogen
A
Correct answer
Explanation
A teratogen is defined as an agent capable of causing birth defects.
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Naphthalene
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Anthracene
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Phenanthrene
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Benzo[a]pyrene
D
Correct answer
Explanation
It has five rings. It also has the faint aromatic odour. Pure benzo[a]pyrene is pale yellow, and is found as monoclinic or orthorhombic crystals. These can be separated from a mixture of polynuclear aromatic hydrocarbons using various standard separation techniques and recrystallized from benzene and methanol. It is known as human carcinogen.