Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

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

Increased asthmatic attacks in certain seasons are related to

  1. Hot and humid environment

  2. Eating fruits preserved in tin containers

  3. Inhalation of seasonal pollen

  4. Low temperature
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

Mark the statement which is an advantage of hydel 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
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

Ultimate source of hydroelectricity is the _______ .

  1. thermal energy

  2. solar energy

  3. hydrothermal energy

  4. wind energy
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

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

Which of the following is not an advantage of 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.
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

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

  1. Rotational energy, potential energy

  2. Kinetic energy, potential energy

  3. Potential energy, rotational energy

  4. Rotational energy, thermal energy
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

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

  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.
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

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

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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