Tag: biology

Questions Related to biology

Match the columns.

Column I Column II
(a) Asthma p Recurrin bronchitis
(b) Emphysema q Accumulation WBCs in alveoli
(c) Pneumonia r Allergy
common respiratory diseases respiratory disorders respiratory system respiratory system of human biology

  1. a-r, b-p, c-q

  2. a-q, b-, c-r

  3. a-r, b-q, c-p

  4. a-q, b-r, c-p

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Correct Option: A

A respiratory disease is?

common respiratory diseases respiratory disorders respiratory system respiratory system of human biology

  1. Cancer

  2. Arthritis

  3. Polio

  4. Asthma

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Correct Option: D

Increased asthmatic attacks in certain seasons are related to

common respiratory diseases respiratory disorders respiratory system respiratory system of human biology

  1. Hot and humid environment

  2. Eating fruits preserved in tin containers

  3. Inhalation of seasonal pollen

  4. Low temperature

Show answer
Correct Option: C
Explanation:

Asthma attacks can be triggered by exposure to allergens, such as pollen, mold or animal dander. This type of asthma is known as allergic asthma. Seasonal allergic rhinitis occurs when a person comes in contact with an allergen or a substance that he or she is sensitive to like pollens.

In which disease, due to flattening of tracheal vessels, alveoli are deprived of oxygen.

common respiratory diseases respiratory disorders respiratory system respiratory system of human biology

  1. Penumonia

  2. Emphysema

  3. Asthma

  4. Bronchitis

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Correct Option: C

Mark the statement which is an advantage of hydel energy.

biology structure of earth electricity from water energy hydro electricity hydro energy

  1. Water availability is free of cost.

  2. Construction of dams is an easy task.

  3. Both A and B

  4. None of the above

Show answer
Correct Option: A
Explanation:

The water required for generation hydel power is available free of cost. Construction of dams in not an easy task. It needs heavy investment.

Ultimate source of hydroelectricity is the _______ .

biology structure of earth electricity from water energy hydro electricity hydro energy

  1. thermal energy

  2. solar energy

  3. hydrothermal energy

  4. wind energy

Show answer
Correct Option: B
Explanation:

Ultimate source of hydroelectricity is the energy of sunlight (solar energy). Heat energy of the sunlight evaporates water in oceans and lakes. This evaporated water goes into the atmosphere and returns back to the Earth as rain water or snow.

Which of the following is not an advantage of hydro energy?

biology structure of earth electricity from water energy hydro electricity hydro energy

  1. Flowing water is found everywhere. So hydro energy can be obtained easily.

  2. It is a renewable source of energy.

  3. It do not cause any pollution.

  4. All of the above.

Show answer
Correct Option: A
Explanation:

Water energy has the following advantages
a) Water energy is renewable and inexhaustible source of energy.
b) Water energy does not cause any pollution
c) Water energy is a cheap source of energy.

As the water is released through control valves, _____ of water changed to ____ .

biology structure of earth electricity from water energy hydro electricity hydro energy

  1. Rotational energy, potential energy

  2. Kinetic energy, potential energy

  3. Potential energy, rotational energy

  4. Rotational energy, thermal energy

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Correct Option: C
Explanation:

As the water is released through control valve, the potential energy of water changes to kinetic energy. As the water flows into reservoir from the catchment area, the kinetic energy of flowing water changes to potential energy.

Which of the following is not a purpose to build dams?

biology structure of earth electricity from water energy hydro electricity hydro energy

  1. Prevent flooding of the rivers in the area.

  2. To prevent flooding of the rivers in the area.

  3. To generate hydroelectricity.

  4. None of the above.

Show answer
Correct Option: D
Explanation:

The dams are constructed for the following purposes:
a) To prevent flooding of the rivers in the area.
b) To provide water for irrigation purposes.
c) To generate hydroelectricity.

Which of the following is not a disadvantage of building large dams?

biology structure of earth electricity from water energy hydro electricity hydro energy

  1. A vast variety of flora and fauna get submerged

  2. Dams can base dangers of earthquake

  3. Human settlement get submerged by stored water

  4. Provide water for irrigation process

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Correct Option: D
Explanation:

Providing water to irrigation process is an advantage of creating dam.