Which are two components affecting the environment? State two examples of each. - Science and Technology 2

Answer in Brief

Which are two components affecting the environment? State two examples of each.



  1. The factors affecting the environment are natural and artificial factors.
  2. Natural factors such as earthquakes, volcanoes, droughts, etc. can adversely affect the environment.
  3. Also, artificial or man-made factors like environmental pollution caused due to population explosion, fast industrialization, and indiscriminate use of natural resources, deforestation and unplanned urbanization can harm the environment.
  4. Biotic and abiotic factors are related to each other in an ecosystem, and if any of the factors is changed or removed, it can affect the entire ecosystem and further affect the environment.
Concept: Ecosystem
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Chapter 4: Environmental Management - Solve the following questions


SCERT Maharashtra Question Bank 10th Standard SSC Science and Technology 2 Maharashtra State Board
Chapter 4 Environmental Management
Solve the following questions | Q 3


Describe the advantages for keeping the ecosystems healthy

Define the following term and give one example:


Write one or two word for the following statement/definition :

The physical factors like temperature, rainfall, light soil air and water of an ecosystem

Write one or two word for the following statement/definition :

Selfcontained unit of living things and their non-living environment needing only sunlight for its functioning

Define an ecosystem.

Give examples of any two ecosystems.

In an ecosystem :
(i) the flow of energy is unidirectional
(ii) the flow of materials is unidirectional
(iii) the flow of materials is cyclic
(iv) the flow of energy is cyclic.

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) (i) and (iii)

Put a tick mark (✓) against the correct alternative in the following statement:

The term “ecosystem” is derived from the Greek word “Oikos” meaning.

Match the items in Column I with as many items as possible in Column II.

  column I Column II
1 Grass (i) Carnivore
2 Deer (ii) Decomposers
3 cobra (iii) Primary Consumer
4 Vulture (iv) Autotroph
5 Microbes (v) Scavenger

What do we learn from the story of Jadav Molai Peyang?

What is shown in the picture? Write name and trophic level of each component.

What are the meanings of following symbols? Write your role accordingly?

If frog population in paddy fields declines all of a sudden,
a) What will be the effect on paddy crop?
b) Number of which consumers will decline and which will increase?
c) Name the Indian states where paddy is cultivated on a large scale.

In a food chain autotrophic plants are present at the _______ level.

Give my information

Describe the following pictures

Define the following term and give two examples.


Answer the following question.
Write the different components of a lac-operon in E. coli. Explain its expression while in an ’open’ state.

What do you understand by the term 'environment'?

How is man-made ecosystem formed?

Name two major types of ecosystems.

List the characteristic flora of the coniferous forests?

In which parts of the world are tropical rainforests found?

What is a forest biome?

A pond/ lake is

Biome is

Word ecosystem was coined by

How do gymnosperms and angiosperms differ?

The second trophic level in a lake is ________________.

Which of the following is most often a limiting factor of the primary productivity in any ecosystem?

What is primary productivity?

A: Heterotrophs do not produce their own food.

R: They depend on autotrophs for their nourishment.

An area where animals, plants and micro organisms live and interact with one another is known as _________.

What is an ecosystem?

_______________ is a chemical factor of abiotic components.

____________ is an organic compound of abiotic components.

Find an odd one out.

Environment is a broad concept.

What does ecosystem mean?

Give scientific reason.

Without the existence of nature, human existence is almost impossible.

Complete food chain.

Grass → _________ → Frog → ________ → Eagle

Complete the concept map.

Why is it said that pollution control is important?

The Pacific ocean is an example of an marine ecosystem.

Define ecosystem.

Identify the similar characteristics of: Lantana, African catfish and Eichhomia.

In a very short period of time, a threat to the ecosystem is caused due to the loss of ______ species.

In which one of the following organisms does the body fluid enter through nephrostome?

Arrange the following in the proper order of hydrarch succession and choose the correct option.

  1. Scrub stage
  2. Marsh - meadow stage
  3. Submerged free floating plant stage
  4. Phytoplankton
  5. Forest
  6. Submerged plant stage
  7. Reed swamp stage

Which one of the following is NOT a natural aquatic ecosystem?

Among the following choose the correct option which contains only biodegradable items?

  1. Wood, paper, PVC
  2. Paper, seeds, detergent,
  3. Paper, animal excreta, wood
  4. Wool, leaves, paper

Which among the following is a correct full form for DDT?

An ecosystem is represented in the figure given above. This ecosystem will be self-sustaining if ______.

In the garden ecosystem, which of the following are producers?

Which one of the following is an artificial ecosystem?

The chain of transformation of energy from one group of organisms to another through various trophic levels is called a ______.

The branch of science that deals with an ecosystem are called ______.

Explain the following term


______ are self-nourishing components of the ecosystem.

The ______ is the ultimate source of energy for the biosphere as a whole.

Define Abiotic Components.

What are energy components?

Pick out the terrestrial ecosystem.

______ is the best example of natural terrestrial ecosystem.

Ecosystem originated without human intervention is called ______.

The ecosystem in water is called ______ ecosystem.

If we protect the ecosystem, we can reduce waste by using durable goods.

Define – Aquarium.

Ecosystems created and maintained by humans are called?

Give two examples of artificial terrestrial ecosystems?

An ecosystem includes

Cooperation of the two photosystems of the chloroplast is required for:

Give an example of a food chain.

Which are the major producers in an aquatic ecosystem?

Give the stratification seen in open seas.

Which is the most important service provided by environment?

In an ecosystem, bacteria are considered as______.

Explain BOD and its effects on aquatic ecosystem.

Describe the functions of the ecosystem.


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