Tag: climate factors

Questions Related to climate factors

The abiotic factors of the environment are
I. Temperature
II. Humidity
III. Vegetation

biology living in harmony climate factors abiotic components organisms and environment

  1. I only

  2. II only

  3. III only

  4. I and II only

  5. I, II and III

Show answer
Correct Option: D
Explanation:

An ecosystem is made up of abiotic components or abiotic factors which are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems. Abiotic factors include water, light, radiation, temperature, humidity, atmosphere and soil. 

Biotic components are the living things that shape an ecosystem. Biotic components usually include Producers (vegetation), Consumers and Decomposers. Therefore only temperature and humidity are included under Abiotic factors. Hence, the correct answer is option D.

All of these are examples of abiotic factors except 

biology living in harmony climate factors abiotic components organisms and environment

  1. Mushrooms 

  2. Soil type

  3. Average yearly rainfall

  4. Sunlight

  5. Relative humidity

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Correct Option: A
Explanation:
The environment is a complex of many factors which surround an organism. These factors are known as environmental factors or ecological factors which may be either living or biotic and non-living or biotic. 
Biotic factors include plants, animals, microbes etc.
Abiotic factors are the non-living factors, substances, and conditions of the environment which influence the physiology, survival, function, and reproduction of organisms. These factors are divided as:
1. Direct factors- For example, light, temperature, humidity of the air, soil air, soil water, soil nutrients etc.
2. Indirect factors- For example, soil structure, soil organisms, altitude, wind, slopes etc.
Hence, Mushrooms will be included under biotic factors and soil type, average yearly rainfall, sunlight and relative humidity will be included under abiotic factors.
So, the correct answer is 'Mushrooms'.

Which of the following is not a property of water?

biology living in harmony climate factors abiotic components organisms and environment

  1. It becomes more dense when it freezes.

  2. It dissolves molecules in the air.

  3. It absorbs heat when the hydrogen bonds break.

  4. It forms hydrogen bonds with other water molecules to create surface tension.

  5. It form hydrogen bonds with other molecules by adhesion.

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Correct Option: A
Explanation:
A. When water freezes, it is converted into ice. Ice has a cage like structure and thus, its density is less than water. Hence, water becomes less dense when it freezes.
B. Water is a polar solvent and thus, many gases are soluble in water. Hence, it dissolves molecules in the air.
C. Water has high energy hydrogen bonds. When these bonds break, heat is released which is absorbed by the water due to its high specific heat capacity.
D. Surface tension is interaction between water molecules which results due to formation of hydrogen bonds between water molecules.
E. Adhesion is the force of attraction between different molecules. Water can form hydrogen bonds with other molecules and this is called adhesion.
Hence, statement A is incorrect.
So, the correct answer is 'It becomes more dense when it freezes'.

All of these are considered ecosystem services except

biology living in harmony climate factors abiotic components organisms and environment

  1. Water purification

  2. Nutrient cycling

  3. Crop pollination

  4. Waste decomposition

  5. None of the above

Show answer
Correct Option: E
Explanation:
The benefits obtained from ecosystem are considered as ecosystem services.
A. As the polluted and wastewater flows through wetlands and forests, it gets filtered and cleaned naturally.
B. Pollination is the transfer of pollen grain from anther to the sigma. Pollinators such as bees, butterflies, birds etc. aid in pollination.
C. Waste decomposition is the breakdown of complex organic materials into simpler ones by the action of microorganisms (detritivores).
D. Nutrient cycling is the exchange and movement of organic matter within the ecosystem.
So, the correct answer is 'All of the above'.

Which of these is an example of an abiotic factor?
I.    Crickets
II.   Rainfall
Ill.  Shark

biology living in harmony climate factors abiotic components organisms and environment

  1. I only

  2. II only

  3. III only

  4. I and III only

  5. I, II and III

Show answer
Correct Option: B
Explanation:
Abiotic factors are the non living factors, substances and conditions of the environment which influence the physiology, survival, function, behaviour and reproduction of organisms. The major abiotic factors are temperature, water, light and soil. 
Hence among all the options given in the question, rainfall is the abiotic factor while crickets and sharks are included under biotic factors as they are living factors.
So, the correct answer is 'II only'.

Which is not a natural ecosystem?

biology living in harmony climate factors abiotic components organisms and environment

  1. Desert

  2. Aquarium

  3. Forest

  4. All of the above

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Correct Option: B

Which of the following is a climatic factor?

biology living in harmony climate factors abiotic components organisms and environment

  1. Oxygen

  2. Temperature

  3. Soil structure

  4. Altitude

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Correct Option: B
Explanation:

The constituents of the environment, which directly or indirectly influence the form and functioning of organisms in any specific way are known as environmental factors. They are of two types: abiotic and biotic. 

The abiotic factors are of four types-
  1. Climatic (light, air, temperature, humidity, precipitation)
  2. Edaphic (soil)
  3. Topographic (surface behaviour of earth)
  4. Fire 
Therefore, the correct answer is option B.

If all the plants of the world die, all the animals will also die due to shortage of

biology living in harmony climate factors abiotic components organisms and environment

  1. Cold air

  2. Oxygen

  3. Timber

  4. None of the above

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Correct Option: B
Explanation:
Plants maintains the balance of oxygen and carbon dioxide in the atmosphere. The plants perform photosynthesis and releases oxygen. The oxygen released by the plants is taken by the animals which is used for breakdown of food and release energy. If all the plants will die the animals will also die due to shortage of oxygen.
So, the correct answer is option B.

Source of energy in ecosystem is

biology living in harmony climate factors abiotic components organisms and environment

  1. Sun

  2. ATP

  3. Sugar made by plants

  4. Green plant

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Correct Option: A
Explanation:

The source of energy in an ecosystem is the sun. The solar energy is trapped by green plants and converted into biologically useful form i.e., carbohydrates. All the consumers depend either directly or indirectly on green plants for nutrition. The energy flow in an ecosystem is always unidirectional i.e., solar radiation to producers to herbivores to carnivores.

Which of the following is present in maximum amount in atmosphere?

biology living in harmony climate factors abiotic components organisms and environment

  1. Oxygen

  2. Nitrogen

  3. Carbon dioxide

  4. Hydrogen

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Correct Option: B
Explanation:
By volume, dry air contains about 78% nitrogen, 21% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases
So, the correct answer is 'Nitrogen'