Tag: evs - i

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Questions Related to evs - i

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

If ELR exceeds ALR, environmental lapse rate, would be considered as:

  1. ELR

  2. Lapse rate

  3. Super adiabatic

  4. Adiabatic lapse rate
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When the Environmental Lapse Rate (ELR) is greater than the Adiabatic Lapse Rate (ALR), the atmosphere is considered unstable. This condition is specifically referred to as super-adiabatic.

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Ecosystem may be defined as 

  1. A localized association of several plants and animals

  2. Different communities of plants, animals and microbes together with thier physico-chemical environment

  3. Different communities of plants microbes plus their physico-chemical environment

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An ecosystem is a natural system consisting of all plants, animals and microorganisms (biotic factors) in an area functioning together with all the non-living physical (abiotic) factors of the environment. These biotic and abiotic components are regarded as linked together through nutrient cycles and energy flows. Ecosystems are defined by the network of interactions among organisms, and between organisms and their environment.

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

The two components of an ecosystem are 

  1. Biotic and abiotic

  2. Plants and animals

  3. Weeds and micro-organism

  4. Plants and light
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Two main components exist in an ecosystem: abiotic and biotic. The abiotic components of any ecosystem are the properties of the environment; the biotic components are the life forms, that occupy a given ecosystem. 

Examples of abiotic components are temperature, average humidity, topography and natural disturbances. 
Examples of biotic components are producers, such as plants and consumers, such as humans. 

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Components of environment are

  1. Biotic

  2. Abiotic

  3. Resources and regulatory factor

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Environment is composed of biotic (living) and abiotic (nonliving) components. All components of environment are closely related and they interact with each other.  Environment is composed of both environmental resources and regulatory factor. 

Biotic components include producers, consumers and decomposers.
Abiotic components include temperature, light intensity, moisture, water levels, air currents, energy radiation, carbon dioxide levels, pH of water, soil etc.
Some component of the environment serves as resources while other serves as regulatory factors. 

Resources include air, water, biota, land and geological and natural resources. Regulatory factors include temperature, light, weather etc.

Thus, the correct answer is option D.

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Ecosystem contains

  1. Food web

  2. Food chain

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In ecology, a food web describes the feeding connections between organisms in a biotic community. Both energy and nutrients flow through a food web, moving through organisms as they are consumed by an organism above them in the food web. A single path of energy through a food web is called a food chain. A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem. All of the interconnected and overlapping food chains in an ecosystem make up a food web.

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Biotic components include

  1. Only producers

  2. Producers, consumers and decomposers

  3. Only consumers

  4. Only producers and consumers
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The biotic components of an ecosystem are the lifeforms that inhabit it. The life forms of an ecosystem aid in the transfer and cycle of energy. Examples of biotic components are producers and consumers. There are three main types of consumers: herbivores, carnivores and omnivores. 

Therefore, the correct answer is option D.

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

What are biotic components?

  1. The living components

  2. The non-living components

  3. Both living and non-living

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • The ecosystem is comprised of various food chains in which the organisms interact with each other.
  • There is also involvement of the non-living forms. The living form is the biotic components and the non-living forms are the abiotic components. The producers, consumers, and decomposers are the biotic components. 
Thus, the correct answer is option A. 

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Ecosystem has two components

  1. Plants and animals

  2. Weeds and trees

  3. Biotic and abiotic

  4. Frogs and man
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
An ecosystem includes the interaction of the living things i.e biotic factors in a given area with the non-living environment i.e abiotic factors such as weather, earth, sun, soil, climate and atmosphere
So, the correct answer is 'Biotic and abiotic'
Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Ecosystem has two components. They are

  1. Trees and fungi

  2. Living and non living

  3. Plants and animals

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An ecosystem includes the interaction of the living things i.e biotic factors in a given area with the non-living environment i.e abiotic factors such as weather, earth, sun, soil, climate and atmosphere. Thus the correct answer is option B.

Multiple choice evs - i issues of the environment eco-system and its destruction ecology and ecosystem ecology and ecosysytem

Abiotic component in an ecosystem is

  1. Water

  2. Daphnia

  3. Bacteria

  4. Chlorella
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An ecosystem includes the interaction of the living things i.e biotic factors in a given area with the non-living environment i.e abiotic factors such as water, weather, earth, sun, soil, climate and atmosphere. Bacteria, Daphnia and Chlorella form the biotic component of the ecosystem. Thus the correct answer is option A.