UPSC Static Quiz – Environment : 14 January 2025

UPSC Static Quiz – Environment : 14 January 2025 We will post 5 questions daily on static topics mentioned in the UPSC civil services preliminary examination syllabus. Each week will focus on a specific topic from the syllabus, such as History of India and Indian National Movement, Indian and World Geography, and more.We are excited to bring you our daily UPSC Static Quiz, designed to help you prepare for the UPSC Civil Services Preliminary Examination. Each day, we will post 5 questions on static topics mentioned in the UPSC syllabus. This week, we are focusing on Indian and World Geography.

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• Question 1 of 5 1. Question Consider the following, Water Decomposers Soil Non- Green plants How many of the above components is/are Biotic components of Environment? a) Only one b) Only two c) Only three d) All four Correct Solution: b) Option 2 and 4 is correct. Everything that surrounds or affects an organism during its life time is collectively known as its environment which comprises both living (biotic) and non-living (abiotic) components. The environment is not static. Both biotic and abiotic factors are in a flux and keep changing continuously. Incorrect Solution: b) Option 2 and 4 is correct. Everything that surrounds or affects an organism during its life time is collectively known as its environment which comprises both living (biotic) and non-living (abiotic) components. The environment is not static. Both biotic and abiotic factors are in a flux and keep changing continuously.

#### 1. Question

Consider the following,

• Decomposers

• Non- Green plants

How many of the above components is/are Biotic components of Environment?

• a) Only one

• b) Only two

• c) Only three

• d) All four

Solution: b)

Option 2 and 4 is correct.

Everything that surrounds or affects an organism during its life time is collectively known as its environment which comprises both living (biotic) and non-living (abiotic) components. The environment is not static. Both biotic and abiotic factors are in a flux and keep changing continuously.

Solution: b)

Option 2 and 4 is correct.

• Question 2 of 5 2. Question An energy pyramid shows Absolute amounts of energy stored in each trophic level Rate of energy flow through trophic levels The pattern of energy pyramid reflects the laws of thermodynamics How many of the above statements is/are correct? a) Only one b) Only two c) All three d) None Correct Solution: b) Statement 1 is incorrect. Energy pyramids represent energy flow through trophic levels. An energy pyramid usually shows rates of energy flow through trophic levels, not absolute amounts of energy stored. Energy pyramids are always upright (biomass pyramids can be inverted), that is, narrower at each successive level (unless organisms enter the ecosystem from elsewhere). This pattern reflects the laws of thermodynamics, which tell us that new energy can’t be created, and that some must be converted to a not-useful form (heat) in each transfer. Incorrect Solution: b) Statement 1 is incorrect. Energy pyramids represent energy flow through trophic levels. An energy pyramid usually shows rates of energy flow through trophic levels, not absolute amounts of energy stored. Energy pyramids are always upright (biomass pyramids can be inverted), that is, narrower at each successive level (unless organisms enter the ecosystem from elsewhere). This pattern reflects the laws of thermodynamics, which tell us that new energy can’t be created, and that some must be converted to a not-useful form (heat) in each transfer.

#### 2. Question

An energy pyramid shows

• Absolute amounts of energy stored in each trophic level

• Rate of energy flow through trophic levels

• The pattern of energy pyramid reflects the laws of thermodynamics

How many of the above statements is/are correct?

• a) Only one

• b) Only two

• c) All three

Solution: b)

Statement 1 is incorrect.

Energy pyramids represent energy flow through trophic levels. An energy pyramid usually shows rates of energy flow through trophic levels, not absolute amounts of energy stored.

Energy pyramids are always upright (biomass pyramids can be inverted), that is, narrower at each successive level (unless organisms enter the ecosystem from elsewhere). This pattern reflects the laws of thermodynamics, which tell us that new energy can’t be created, and that some must be converted to a not-useful form (heat) in each transfer.

Solution: b)

Statement 1 is incorrect.

Energy pyramids represent energy flow through trophic levels. An energy pyramid usually shows rates of energy flow through trophic levels, not absolute amounts of energy stored.

• Question 3 of 5 3. Question The coastal ecosystems of mangroves, tidal marshes, and seagrass meadows provide numerous benefits and services along coasts like Food security for many coastal communities Regulation of coastal water quality Provision of habitat for commercially important fisheries Protection from storms and sea level rise Sequester and store coastal blue carbon from the atmosphere How many of the above statements is/are correct? a) Only two b) Only three c) Only four d) All five Correct Solution: d) The coastal ecosystems of mangroves, tidal marshes, and seagrass meadows provide numerous benefits and services that are essential for climate change adaptation along coasts globally, including protection from storms and sea level rise, prevention of shoreline erosion, regulation of coastal water quality, provision of habitat for commercially important fisheries and endangered marine species, and food security for many coastal communities. Additionally, these ecosystems sequester and store significant amounts of coastal blue carbon from the atmosphere and ocean and hence are now recognized for their role in mitigating climate change. Incorrect Solution: d) The coastal ecosystems of mangroves, tidal marshes, and seagrass meadows provide numerous benefits and services that are essential for climate change adaptation along coasts globally, including protection from storms and sea level rise, prevention of shoreline erosion, regulation of coastal water quality, provision of habitat for commercially important fisheries and endangered marine species, and food security for many coastal communities. Additionally, these ecosystems sequester and store significant amounts of coastal blue carbon from the atmosphere and ocean and hence are now recognized for their role in mitigating climate change.

#### 3. Question

The coastal ecosystems of mangroves, tidal marshes, and seagrass meadows provide numerous benefits and services along coasts like

• Food security for many coastal communities

• Regulation of coastal water quality

• Provision of habitat for commercially important fisheries

• Protection from storms and sea level rise

• Sequester and store coastal blue carbon from the atmosphere

How many of the above statements is/are correct?

• a) Only two

• b) Only three

• c) Only four

• d) All five

Solution: d)

The coastal ecosystems of mangroves, tidal marshes, and seagrass meadows provide numerous benefits and services that are essential for climate change adaptation along coasts globally, including protection from storms and sea level rise, prevention of shoreline erosion, regulation of coastal water quality, provision of habitat for commercially important fisheries and endangered marine species, and food security for many coastal communities.

Additionally, these ecosystems sequester and store significant amounts of coastal blue carbon from the atmosphere and ocean and hence are now recognized for their role in mitigating climate change.

Solution: d)

• Question 4 of 5 4. Question Consider the following statements regarding Mangroves. Mangroves are very specialised forest ecosystems of tropical and subtropical regions bordering certain sea coasts. They stabilise the shoreline and act as bulwark against encroachments by the sea. They do not grow in low-oxygen soil. How many of the above statements is/are correct? a) Only one b) Only two c) All three d) None Correct Solution: b) Statement 3 is incorrect. Mangroves are a group of trees and shrubs, sustaining in the coastal regions of the planet. These trees grow in low-oxygen soil with slow-moving water. These ecosystems of tropical and subtropical inter-tidal regions bordering the sheltered sea coasts and estuaries, they stabilize the shoreline and act as a bulwark against encroachments by the sea. Incorrect Solution: b) Statement 3 is incorrect. Mangroves are a group of trees and shrubs, sustaining in the coastal regions of the planet. These trees grow in low-oxygen soil with slow-moving water. These ecosystems of tropical and subtropical inter-tidal regions bordering the sheltered sea coasts and estuaries, they stabilize the shoreline and act as a bulwark against encroachments by the sea.

#### 4. Question

Consider the following statements regarding Mangroves.

• Mangroves are very specialised forest ecosystems of tropical and subtropical regions bordering certain sea coasts.

• They stabilise the shoreline and act as bulwark against encroachments by the sea.

• They do not grow in low-oxygen soil.

How many of the above statements is/are correct?

• a) Only one

• b) Only two

• c) All three

Solution: b)

Statement 3 is incorrect.

Mangroves are a group of trees and shrubs, sustaining in the coastal regions of the planet. These trees grow in low-oxygen soil with slow-moving water.

These ecosystems of tropical and subtropical inter-tidal regions bordering the sheltered sea coasts and estuaries, they stabilize the shoreline and act as a bulwark against encroachments by the sea.

Solution: b)

Statement 3 is incorrect.

Mangroves are a group of trees and shrubs, sustaining in the coastal regions of the planet. These trees grow in low-oxygen soil with slow-moving water.

• Question 5 of 5 5. Question Consider the following statements regarding Biotope. It is an ecological area that is usually larger than an ecosystem. It supports a particular range of biological communities. It is a common practice to isolate biotopes from each other for niche biodiversity propagation. How many of the above statements is/are correct? a) Only one b) Only two c) All three d) None Correct Solution: a) Only Statement 2 is correct. Biotope is an ecological area that supports a particular range of biological communities. Biotope is almost synonymous with the term habitat. A biotope is generally not considered to be a large-scale phenomenon. For example, a biotope might be a neighbouring park, a back garden, even potted plants or a fish tank. In other words, the biotope is not a macroscopic but a microscopic approach to preserving the ecosystem and biological diversity. It is commonly emphasised that biotopes should not be isolated. Instead biotopes need to be connected to each other and other surrounding life for without these connections to life-forms such as animals and plants, biotopes would not effectively work as a place in which diverse organisms live. So one of the most effective strategies for regenerating biotopes is to plan a stretch of biotopes, not just a point where animals and plants come and go. Incorrect Solution: a) Only Statement 2 is correct. Biotope is an ecological area that supports a particular range of biological communities. Biotope is almost synonymous with the term habitat. A biotope is generally not considered to be a large-scale phenomenon. For example, a biotope might be a neighbouring park, a back garden, even potted plants or a fish tank. In other words, the biotope is not a macroscopic but a microscopic approach to preserving the ecosystem and biological diversity. It is commonly emphasised that biotopes should not be isolated. Instead biotopes need to be connected to each other and other surrounding life for without these connections to life-forms such as animals and plants, biotopes would not effectively work as a place in which diverse organisms live. So one of the most effective strategies for regenerating biotopes is to plan a stretch of biotopes, not just a point where animals and plants come and go.

#### 5. Question

Consider the following statements regarding Biotope.

• It is an ecological area that is usually larger than an ecosystem.

• It supports a particular range of biological communities.

• It is a common practice to isolate biotopes from each other for niche biodiversity propagation.

How many of the above statements is/are correct?

• a) Only one

• b) Only two

• c) All three

Solution: a)

Only Statement 2 is correct.

Biotope is an ecological area that supports a particular range of biological communities.

Biotope is almost synonymous with the term habitat.

A biotope is generally not considered to be a large-scale phenomenon. For example, a biotope might be a neighbouring park, a back garden, even potted plants or a fish tank.

In other words, the biotope is not a macroscopic but a microscopic approach to preserving the ecosystem and biological diversity.

It is commonly emphasised that biotopes should not be isolated. Instead biotopes need to be connected to each other and other surrounding life for without these connections to life-forms such as animals and plants, biotopes would not effectively work as a place in which diverse organisms live.

So one of the most effective strategies for regenerating biotopes is to plan a stretch of biotopes, not just a point where animals and plants come and go.

Solution: a)

Only Statement 2 is correct.

Biotope is an ecological area that supports a particular range of biological communities.

Biotope is almost synonymous with the term habitat.

A biotope is generally not considered to be a large-scale phenomenon. For example, a biotope might be a neighbouring park, a back garden, even potted plants or a fish tank.

In other words, the biotope is not a macroscopic but a microscopic approach to preserving the ecosystem and biological diversity.

So one of the most effective strategies for regenerating biotopes is to plan a stretch of biotopes, not just a point where animals and plants come and go.

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