Tag: evs

Questions Related to evs

Soil profile means ______.

evs soil- our life horizons of soil soil - formation and profile soil-nature

  1. Composition of the soil

  2. Texture of the soil

  3. Layers of the soil

  4. None of the above

Show answer
Correct Option: C
Explanation:

A vertical section through different layers of the soil is called the soil profile.

So, the correct answer is 'Layers of the soil'

Which one of the following is not socially balanced ?

evs safety and first aid community health hygiene first aid

  1. He enjoys a birthday party.

  2. He behaves rudely over trivial matters.

  3. He adjusts well to the surrounding situation.

  4. He attends to his ailing mother at the hospital.

Show answer
Correct Option: A

........... is a state of physical, mental and social well being  and not merely absence of disease.

evs safety and first aid community health hygiene first aid

  1. Health

  2. Hygiene

  3. Disease

  4. None of the above

Show answer
Correct Option: A
Explanation:

  • Health, as defined by the World Health Organization (WHO), is "a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity." 
  • This definition has been subject to controversy, as it may have limited value for implementation. 
  • Health may be defined as the ability to adapt and manage physical, mental and social challenges throughout life. Hence, Health is a state of physical, mental and social well being and not merely absence of disease.
So, the correct answer is 'Health'.

Which of the following is the threat to community health?

evs safety and first aid community health hygiene first aid

  1. Pollution

  2. Squalor

  3. Addiction

  4. All of the above

Show answer
Correct Option: D

Diseases that get transmitted from one person to another is known as

evs safety and first aid community health hygiene first aid

  1. Congenital diseases

  2. Non communicable diseases

  3. Communicable diseases

  4. None of these

Show answer
Correct Option: C
Explanation:

A communicable disease is one that is spread from one person to another through a variety of ways that include: 

  • contact with blood and bodily fluids; 
  • breathing in an airborne virus; or 
  • by being bitten by an insect.
 Some examples of the communicable diseases include Hepatitis A, B & C, influenza, measles, and salmonella and other food-borne illnesses. Hence, Diseases that get transmitted from one person to another is known as Communicable diseases.
 So, the correct answer is 'Communicable diseases'.

Community health focuses on the improvement of the health characteristics of the society.

evs safety and first aid community health hygiene first aid

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

  • Community health is a major field of study within the medical and clinical sciences which focuses on the maintenance, protection, and improvement of the health status of population groups and communities.
  •  It is a distinct field of study that may be taught within a separate school of public health or environmental health.
  •  The WHO defines community health as: environmental, social, and economic resources to sustain emotional and physical well being among people in ways that advance their aspirations and satisfy their needs in their unique environment. Hence, Community health focuses on the improvement of the health characteristics of society.
 So, the correct answer is 'True'.

Human life require which kind of material for leaving?

evs substances in daily use can all changes be reversed? substances and objects changes around us

  1. Food

  2. Fuel

  3. Home

  4. All of these

Show answer
Correct Option: D
Explanation:
Food is something that provides nutrients. 

Nutrients are substances that provide: energy for activity, growth, and all functions of the body such as breathing, digesting food, and keeping warm; materials for the growth and repair of the body, and for keeping the immune system healthy.

Fossil fuels are used to fuel cars and aeroplanes, power electricity plants, and heat our homes. 

They are also used to make medicines, cosmetics, plastics, synthetic fabrics, and lubricants. When you brushed your teeth today, you used a product made from oil – toothpaste.

We need a home as it gives shelter and security.

Hence the option D is correct.

Coal is _________ fuel.

evs substances in daily use can all changes be reversed? substances and objects changes around us

  1. fossil

  2. natural

  3. Both a and b

  4. None of these

Show answer
Correct Option: A
Explanation:

Coal is a fossil fuel. Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. 

Petroleum products are used for :

evs substances in daily use can all changes be reversed? substances and objects changes around us

  1. fuel purpose

  2. making creams and ointments

  3. both $A$ and $B$

  4. None of these

Show answer
Correct Option: C
Explanation:

Petroleum products such as petrol, diesel, kerosene and petroleum gas are used as fuel as they have high calorific value. 


Petroleum products are also used as raw material for cosmetics industries.

Hence the option C is correct.

The fuel used in homes for making food is :

evs substances in daily use can all changes be reversed? substances and objects changes around us

  1. CNG

  2. LPG

  3. KPG

  4. HDG

Show answer
Correct Option: B
Explanation:

B, LPG is clean fuel, it has high calorific value and low ignition temperature.

It is easy to handle and to transport. All these qualities make it suitable for domestic use.