Tag: the environment and us

Quizzes (17) Questions (187)

Questions Related to the environment and us

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

The term smog was coined by

  1. Fourier

  2. Des Voeux

  3. Schouw

  4. Ashbel
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
A. Fourier was a French mathemathician who discovered how global warming occurs due to rise in temperature of earth's surface.
B. Des Voeux coined the term smog in 1905 to describe the condition of fog which has smoke in it.
C. J.F. Schouw was a Danish botanist who worked on phytogeography and origin of species and their evolution.
D. Ashbel with the expertise in biology and medicine worked on various scientific aspects.
So, the correct answer is 'Des Voeux'.
Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Which of the following disease is caused by excess pollen in the air and is characterized by collective symptoms of asthma, bronchitis and rhinitis?

  1. Kala azar

  2. Sleeping sickness

  3. Hay fever

  4. Yellow fever
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A.   A.  Kala azar is caused by bites from female phlebotomine sandflies – the vector (or transmitter) of the leishmania parasite.

B.    B.Sleeping sickness is caused by two types of parasites Trypanosoma brucei rhodesiense and Trypanosomoa brucei gambiense. Tsetse flies carry the infection

C.Hay fever is an allergic disorder characterized by an exaggerated immune response to pollen grains and other substance. It is also called allergic rhinitis which affecting the nose. Symptoms generally have runny nose, itchy eyes,mouth,skin or sneezing 
D. yellow fever is caused by the Flavivirus , and it's transmitted when an infected mosquito bites you. 
So, the correct option is 'Hay fever'.


Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Which of the following is NOT caused by Hydrogen sulfide pollution in the air?

  1. Mottled chlorosis

  2. Defoliation in plants

  3. Decolouration of paints

  4. Cardiovascular malfunction
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In human, effect of Hydrogen sulfide due to air pollution is not seen but in plant it greatly effect like chlorosis ( yellowish color of plant leaves). Falling of leaves is also a major problem (defoliation). Hydrogen sulfide also damage building, bridge paints (discoloration).

So correct option is 'cardiovascular malfunction'.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Air pollution is likely to be most severe

  1. in the interior of continents

  2. near the center of an anticyclone

  3. in the summer

  4. when the atmosphere is turbulent
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Anticyclones are high-pressure systems characterized by sinking air and stable atmospheric conditions. This stability traps pollutants near the ground, leading to severe air pollution.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Large increase in absorption of UV- radiation of 260 nm by melted DNA duplex is called

  1. Gaidukov phenomenon

  2. Position effect

  3. DNA compaction

  4. Hyperchromic effect
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • The increase in the absorbance of a material is known as hyperchromicity and the effect is known as the hyperchromic effect.
  • The DNA molecule gets denatured by the hyperchromicity.
  • The absorption of UV radiation by DNA molecule increases when the two single DNA strands get separated by heat or by a heat denaturant or by changing the pH level.
  • So, the correct answer is 'Hyperchromic effect'.
Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Which of the following pollutants is not present in the vehicular exhaust emissions?

  1. Lead

  2. Ammonia

  3. Carbon monoxide

  4. Partculate matter
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Vehicular emissions are contributing to air quality problems, smog etc. emissions of many air pollutants have shown variety of negative effect on public health. Emission of principle pollutants like hydrocarbon, CO. $NO _x$, $SO _x$, particulate matter and volatile organic compounds are affecting natural environment and contributing to asthma, bronchitis and various diseases etc. Ammonia is not present in vehicular exhaust emissions.
So, the correct answer is 'Ammonia'.
Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Which particle ranges from 1 to 1000 um in diameter?

  1. Smoke

  2. Dust

  3. Fumes

  4. Spray
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dust particles are solid particles suspended in the air, typically ranging from 1 to 1000 micrometers in diameter, generated by mechanical processes like grinding or crushing.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Some effects of SO$ _2$ and its transformation products on plants include 

  1. Chlorophyll destruction

  2. Chlorophyll plasmolysis

  3. Golgi body destruction

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The presence of pollutant adversely affect the plants. Reduction in chlorophyll is caused by toxic ions formed by the dissolution of SO$ _2$ in water inside leaf tissue, which preferentially incorporate into thylakoid membrane disturbs the photosystems. The oxides of sulphur transform into several poisonous substances which hamper the growth of the plants.

So, the correct option is A.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Which of the atmospheric pollutant causes general chlorosis destruction of chlorophyll?

  1. SO$ _2$

  2. Hydrocarbons

  3. CO
  4. CO$ _2$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The increase in the concentration of the air pollutants results in an adverse effect on the plants and animal health. SO$ _2$ is considered as one of the pollutants which causes bleaching of the plants. The chlorophyll pigments in the leaves of the plants are destroyed in the presence of increased amounts of sulfuric acid which is formed by reacting with the water in plants. 

Thus, the correct answer is option A.