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Questions Related to evs - i

Heavy smokers are most likely to suffer from

evs - i drugs effects of smoking smoking tobacco busy at work - our internal organs

  1. Asthma

  2. Silicosis

  3. Emphysema

  4. Anosmia

  5. Bronchitis

Show answer
Correct Option: C
Explanation:

Emphysema is a progressive, incurable chronic lung infection. The air sacs or the alveoli are destroyed and oxygen uptake is restricted due to the loss of elasticity of lung tissue.
Thus, the correct answer is option (C), 'Emphysema'.

 Smoking cigarette is harmful because

evs - i busy at work - our internal organs effects of smoking smoking tobacco drugs

  1. It causes cancer.

  2. It causes cardiovascular problems.

  3. It causes bronchitis.

  4. All of the above.

Show answer
Correct Option: D
Explanation:
Cigarette-smoking is harmful because
  • It causes cancer.
  • It causes cardiovascular problems.
  • It causes bronchitis.
Cigarettes, cigars, and pipe tobacco are made from dried tobacco leaves, and ingredients are added for flavor and to make smoking more pleasant. The smoke from these products is a complex mixture of chemicals produced by the burning of tobacco and its additives. Tobacco smoke is made up of more than 7,000 chemicals, including over 70 known to cause cancer (carcinogens). Some of these substances cause heart and lung diseases, too, and all of them can be deadly. You might be surprised to know some of the chemicals found in tobacco smoke include:
  • Cyanide
  • Benzene
  • Formaldehyde
  • Methanol (wood alcohol)
  • Acetylene (the fuel used in welding torches)
  • Ammonia
Tobacco smoke also contains tar and the poison gases carbon monoxide and nitrogen oxide. The ingredient that produces the effect people are looking for is nicotine, an addictive drug and one of the harshest chemicals in tobacco smoke.
The tobacco leaves used to make cigarettes and cigars contain radioactive materials; the amount depends on the soil the plants were grown in and fertilizers used. But this means that the smoke contains small amounts of radioactive material, too, which smokers take into their lungs as they inhale. These radioactive particles build up in the lungs, and over time can mean a big dose of radiation. This may be another key factor in smokers getting lung cancer.

Which of the following countries does not depend on desalination process for getting fresh water?

evs - i rules are for everyone control of water pollution protecting our environment introduction to natural resources

  1. Dubai

  2. Iran

  3. France

  4. Qatar

Show answer
Correct Option: C
Explanation:
France does not depend on desalination process for getting fresh water.
Desalination is a process that removes minerals from saline water. More generally, desalination refers to the removal of salts and minerals from a target substance, as in soil desalination, which is an issue for agriculture.
Due to its energy consumption, desalinating sea water is generally more costly than fresh water from rivers or groundwater, water recycling and water conservation.
Desalination is particularly relevant in dry countries such as Australia, which traditionally have relied on collecting rainfall behind dams for water.
Water pollution can be controlled in the multiple ways. It is best controlled by the dilution of water. The pollutants must be treated chemically and must be converted into the non toxic substances. The low level of radioactive wastes in the water is removed by the oxidation of ponds. There are certain chemicals which act on the organic insecticide and are used in the pesticide. There are different techniques which are very helpful in the process of thermal pollution and involve the cooling, evaporation, water cooling; cooling can be wet or dry.

The resources which can be reproduced by the physical, chemical and mechanical process is called __________.

evs - i our home and environment environmental issues due to construction of houses introduction to natural resources (eco) materials (resources ) and its classification

  1. Renewable resources

  2. Non-renewable resources

  3. Both A and B

  4. None of the above

Show answer
Correct Option: A
Explanation:

The resources which can be reproduced by physical, chemical and mechanical process is called renewable resources

Renewable resources: These are the sources which can be replenished over a period of time. Example is forest wood because wood can be grown by reforestation.

Resources which are surveyed and their quality and quantity have been determined for utilization are called _________.

evs - i our home and environment environmental issues due to construction of houses introduction to natural resources (eco) materials (resources ) and its classification

  1. Potential resources

  2. Developed resources

  3. Natural resources

  4. None of the above

Show answer
Correct Option: B
Explanation:

Developed resources: Resources that surveyed for utilisation and are being used currently are called developed resources. Example: Petroleum in Mumbai High

Public Park is an example of __________.

evs - i our home and environment environmental issues due to construction of houses introduction to natural resources (eco) materials (resources ) and its classification

  1. community owned resource

  2. individual resource

  3. national resource

  4. international resource

Show answer
Correct Option: A
Explanation:

Based on ownership the resources are classified as individual, community, national and international resources.

Public Park is an example of community owned resource. Community resources are owned by a community instead of an individual.

Wind is a _________.

evs - i our home and environment environmental issues due to construction of houses introduction to natural resources (eco) materials (resources ) and its classification

  1. natural but non-renewable resource

  2. natural and renewable resource

  3. artificial and non-renewable resource

  4. artificial but renewable resource

Show answer
Correct Option: B
Explanation:

The resources which can be reproduced by physical, chemical and mechanical process is called renewable resources. These are the sources which can be replenished over a period of time.

Wind is a natural and renewable source of energy.

Resources which are found in a region, but have not been utilised is called ____________.

evs - i our home and environment environmental issues due to construction of houses introduction to natural resources (eco) materials (resources ) and its classification

  1. potential resources

  2. developed resources

  3. Both A and B

  4. None of the above

Show answer
Correct Option: A
Explanation:

Potential: resources which are surveyed for their quality and quantity and have determined to be useful in future are called potential resources.

Examples: mineral which exists in sedimentary rocks can be used in future.

The material in the environment which have the potential to satisfy human needs but human beings do not have the appropriate technology to access these, are included among ____________.

evs - i our home and environment environmental issues due to construction of houses introduction to natural resources (eco) materials (resources ) and its classification

  1. Potential resources

  2. Developed resources

  3. Stock resources

  4. None of the above

Show answer
Correct Option: C

What type of energy is derived from heated groundwater?

evs - i our home and environment environmental issues due to construction of houses introduction to natural resources (eco) materials (resources ) and its classification

  1. Solar energy

  2. Geothermal energy

  3. Hydroelectric energy

  4. Nuclear energy

Show answer
Correct Option: B
Explanation:

Geothermal energy is the energy that is formed due to the differences in the temperature of core of earth and its surface which results in continuous conduction of temperature to the surface from core.

The energy thus generated is called geothermal energy. This can also be derived from heating ground water.