Tag: climate factors

Questions Related to climate factors

Sunlight that bounces off a surface is said to be __________ from the surface.

biology living in harmony climate factors abiotic components organisms and environment

  1. Radiated

  2. Absorbed

  3. Emitted

  4. Reflected

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Correct Option: D

One third of sunlight striking earth and its atmosphere is reflected back to

biology living in harmony climate factors abiotic components organisms and environment

  1. Space

  2. Air

  3. Troposphere

  4. Stratosphere

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Correct Option: A

Sunlight passes through a thicker portion of the atmosphere at

biology living in harmony climate factors abiotic components organisms and environment

  1. Sunrise

  2. Noon

  3. Sunset

  4. Both a and c

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Correct Option: D

In which ecosystem sun is main source of energy?

biology living in harmony climate factors abiotic components organisms and environment

  1. Fuel power ecosystem

  2. Man subsidized solar power ecosystem

  3. Unsubsidized natural solar powered ecosystem

  4. Naturally subsidized solar powered ecosystem

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Correct Option: D

Mangroves and estuaries, less dependent on

biology living in harmony climate factors abiotic components organisms and environment

  1. Animals

  2. Sunlight

  3. Inorganic

  4. Organic factors

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Correct Option: B

The creating force of any ecosystem is

biology living in harmony climate factors abiotic components organisms and environment

  1. Organic fuels, carbohydrates

  2. Biomass

  3. Solar energy

  4. Producers

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Correct Option: C
Explanation:

Nearly all of the energy, that drives ecosystems ultimately comes from the sun. 

Solar energy, which is an abiotic factor, enters the ecosystem through the process of photosynthesis. The organisms in an ecosystem, that capture the sun's electromagnetic energy and convert it into chemical energy are called as producers. 
Producers include all of the green plants and some bacteria and algae. The primary consumers exclusively feed on producers. They are known as herbivores. Primary consumers only obtain a fraction of the total solar energy about 10% captured by the producers they eat. 
The other 90% is used by the producer for growth, reproduction, and survival, or it is lost as heat. Primary consumers are eaten by secondary consumers. Secondary consumers are eaten by tertiary consumers. 

Ecosystem has two components. They are

biology living in harmony climate factors abiotic components organisms and environment

  1. Plants and animals

  2. Trees and fungi

  3. Living and nonliving

  4. Frogs and man

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Correct Option: C
Explanation:

An ecosystem is made up of components, biotic and abiotic. Biotic components constitute all the living members of an ecosystem. While abiotic component of an ecosystem consists of non-living substances and factors such as air, water soil, sunlight etc. Thus option C is the correct answer. 

Soil erosion can occur due to

biology living in harmony climate factors abiotic components organisms and environment

  1. Rains or floods

  2. High velocity winds

  3. Deforestation

  4. All the above

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Correct Option: D
Explanation:

Soil is made up of many layers, forming soil profile. The uppermost layer of soil is made up of sandy soil that withers away quickly under the effect of blowing wind, flowing water in the form of rains or floods. Apart from this, trees hold the soil particles together with the help of their roots. Deforestation activities lead to a decrease in the number of trees resulting in an increase in the rate of soil erosion.

So, option D "All of the Above" is the correct answer.

Which of the following occurs in abiotic component of ecosystem?

biology living in harmony climate factors abiotic components organisms and environment

  1. Flow of energy

  2. Cycling of materials

  3. Consumers

  4. Flow of energy and cycling of materials

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Correct Option: D
Explanation:

Flow of energy and consumers are part of biotic components of ecosystem. Water, carbon, nitrogen and phosphorous all take paths from the non-living environment to living organisms, such as trees and then back to non-living environment. These paths known as biogeochemical cycles. In these cycles, a pathway is formed when a substance enters into living organisms, stays for a long time, then returns to the non-living environment. As it is part of abiotic component of ecosystem.

Therefore, the correct answer is option B.

Primary source of energy in an ecosystem is

biology living in harmony climate factors abiotic components organisms and environment

  1. Sugar stored in plants

  2. Heat liberated during respiration

  3. Solar energy

  4. Heat liberated during fermentation

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Correct Option: C
Explanation:

The fundamental source of energy in almost all ecosystems is radiant energy from the sun. The energy of sunlight is used by the ecosystem's autotrophic, or self-sustaining, organisms. Consisting largely of green vegetation, these organisms are capable of photosynthesis - i.e., they can use the energy of sunlight to convert carbon dioxide and water into simple, energy-rich carbohydrates. The autotrophs use the energy stored within the simple carbohydrates to produce the more complex organic compounds, such as proteins, lipids, and starches, that maintain the organism's life processes. Organic matter generated by autotrophs directly or indirectly sustains heterotrophic organisms. Heterotrophs are the consumers of the ecosystem; they cannot make their own food. 

Therefore, the correct answer is option C.