Tag: abiotic components

Questions Related to abiotic components

I. Temperature
II. Humidity
III. Vegetation 
The abiotic factors of ecosystem include

zoology environmental factors soil-nature 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

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Correct Option: D
Explanation:

Biotic factors of an ecosystem include all plant and animal species present in there. The abiotic factors include a physical environment in which they can survive. It includes light, temperature, humidity and other climatic condition as well as physical factors like soil. Thus, the correct answer is D. 

Pedology is the science of

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Rocks

  2. Diseases

  3. Soil

  4. Pollution

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Correct Option: C
Explanation:

Pedology is the study of soils in their natural environment. It is one of the two branches of soil.

Edaphology is the relationship between

botany environmental factors soil-nature climate factors abiotic components

  1. Plant and biosphere

  2. Animal and ecosystem

  3. Soil and living organisms

  4. Soil and biosphere

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Correct Option: C

The part of the biosphere which contains soil is known as 

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Pedosphere

  2. Lithosphere

  3. Hygrosphere

  4. Toposphere

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Correct Option: A
Explanation:
  • Pedosphere is an outer layer of earth that contains soil.
  • Lithosphere includes the brittle upper portion of the mantle, crust and Mantles are made of rock or ices. 
  • Hydrosphere contains all the waters on the earth's surface, such as lakes and seas.
  • Troposphere is the lowest layer of the atmosphere, closest to the earth's surface. so option A is a correct answer.

In a .......... ecosystem, the producers are mostly herbaceous or woody plants.

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Terrestrial

  2. Aquatic

  3. Desert

  4. None of these

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Correct Option: A
Explanation:

Herbaceous plants are plants with very flexible stems. Woody plants include trees and shrubs. These are the plants present in the terrestrial ecosystem. They convert solar energy into chemical energy through photosynthesis in which carbon dioxide and water are used in presence of sunlight to synthesize nutrients such carbohydrates in the form of glucose and release oxygen into the atmosphere. Since plants form the base of the terrestrial ecosystem they are the producers.

Environment consists of

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. land, air, water

  2. light, temperature and rainfall

  3. plants, animals and microbes

  4. All the above

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Correct Option: D
Explanation:
The environment consists of two major components:
  • Abiotic components: These are non-living components of the environment and consist of two things, materials and energy (that may be light or chemical energy). Materials include land, air, water, minerals, salts, atmospheric gases, rainfall, temperature etc.
  • Biotic components: These are living components of the environment and divided into autotrophic and heterotrophic components. An autotrophic component is the producers or green plants while heterotrophic component includes consumers (primary, secondary and tertiary consumers) and decomposers (microbes).
Hence, all the given options are correct.
So, the correct answer is 'All the above'.

Which of the following components of biosphere makes an interface with the soil?

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Pedosphere

  2. Troposhere

  3. Atmosphere

  4. Stratosphere

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Correct Option: B

Which of the following gas is present at a very high concentration in our environment?

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. $O _{2}$

  2. $CO _{2}$

  3. $H _{2}$

  4. $N _{2}$

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Correct Option: D

What will be seriously threatened by rising sea level?

botany environmental factors soil-nature climate factors abiotic components

  1. Coastal cities

  2. Marine Animals

  3. Terrestrial Areas

  4. Sea

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Correct Option: A

At any given time,  __________ of the earth is illuminated by the sun.

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. One-fourth

  2. One-third

  3. One-half

  4. Two-thirds

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Correct Option: C