Tag: evs

Questions Related to evs

Put a tick mark against the correct alternative in the following statement:
One of the following is a bacterial disease of sheep and goat. Identify it.

evs production of food from animals dairy farm management cattle farming uses of animals contribution of louis pasteur discoveries by louis pasteur discovery of microorganisms

  1. Sore mouth

  2. Rinderpest

  3. Goat pox

  4. Brucellosis

Show answer
Correct Option: D
Explanation:

Brucellosis is an infectious disease caused by a bacterium of the genus Brucella. Various Brucella species affect sheep, goats, cattle, pigs, dogs, and other animals. Bovine brucellosis mainly affects rams, causing lesions in their reproductive organs (called epididymitis).

Rest of the diseases are caused by viruses.
Hence, the correct answer is 'Brucellosis'

Feeding jaggery with limewater is one of the first aid measure for ...........

evs production of food from animals dairy farm management cattle farming uses of animals contribution of louis pasteur discoveries by louis pasteur discovery of microorganisms

  1. Diarrhoea

  2. Milk fever

  3. Cow Pox

  4. Anthrax

Show answer
Correct Option: B
Explanation:

Milk fever is a disorder of mainly dairy cows close to calving. It is a metabolic disease caused by a low blood calcium level. Feeding jaggery along with lime water, few days prior to calving and giving soft nutritious and easily digestible food for few days after calving prevent milk fever.
Thus, the correct answer is option (B), 'Milk fever'.

Put a tick mark against the correct alternative in the following statement:
Which one of the following is a viral disease of poultry?

evs production of food from animals dairy farm management cattle farming uses of animals contribution of louis pasteur discoveries by louis pasteur discovery of microorganisms

  1. Ranikhet disease

  2. Cholera

  3. Coryza

  4. Aspergillosis

Show answer
Correct Option: A
Explanation:

  • Ranikhet disease is a disease caused by viruses. It is the most fatal disease of poultry. 
  • Cholera and coryza are bacterial diseases.
  • Aspergillosis is a fungal disease.
Hence, the correct answer is 'Ranikhet disease'

Quantity of  $CO _{2}$ in the atmosphere is about


evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

  1. 0.003%

  2. 0.03%

  3. 0.3%

  4. 3.0%

Show answer
Correct Option: B

The $CO _{2}$ content by volume, in the atmospheric air is about

evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

  1. 3.34%

  2. 4%

  3. 0.0314%

  4. 2.1%.

Show answer
Correct Option: C
Explanation:

The carbon dioxide present in the atmosphere is generally the result of respiration by animals during the day and the emissions by various vehicles, industries and machines. All these activities account for a total of approximately 0.04% CO2 in the atmospheric air.

So, the correct answer is '0.0314%'.

Ozone is formed in stratosphere by action of ultravoilet radiations on oxygen.

evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

  1. True

  2. False

  3. Either

  4. Neither

Show answer
Correct Option: A
Explanation:
Ozone (O3) molecule is made up of three oxygen atoms. It is formed in the stratosphere when single oxygen atom combines with a molecule of oxygen i.e. when [O] combines with O2. Oxygen molecule consisting of two oxygen atoms splits into atomic oxygen in the presence of ultraviolet radiation. The atomic oxygen then combines with another molecule of oxygen to form ozone.
The reactions are as follows:
      UV light
O2 ---------------> [O] + [O]
[O] + O2 ---------->O3
Hence, the statement given in the question is correct.
So, the correct answer is 'True'.

How many layers are found in atmosphere?

evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

  1. 2

  2. 3

  3. 5

  4. 4

Show answer
Correct Option: D

Closest atmospheric layer to earth's surface is known as

evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

  1. Boundary Layer

  2. Atmosphere

  3. Biosphere

  4. Hydrosphere

Show answer
Correct Option: A

What is lower layer of atmosphere called?

evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

  1. Ionosphere

  2. Mesosphere

  3. Troposphere

  4. Stratosphere

Show answer
Correct Option: A

The earth's atmosphere is divided into layers based on the vertical profile of:

evs atmosphere- wind weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate

  1. Air pressure

  2. Air temperature

  3. Air density

  4. Wind speed

Show answer
Correct Option: B