[Solved] Ecology MCQ [Free PDF] - Objective Question Answer for Ecology Quiz - Download Now! (2023)

1. Pharmaceutical Industry
2. Biodiversity
3. International Finance
4. Organic Farming
5. Self Help Groups

The correct answer isBiodiversity.

Key Points

• On 29 October 2010,18,000 participants representing the 193 Parties to the Convention on Biological Diversity (CBD) and their partners closed the Nagoya Biodiversity Summit by adopting historic decisions that will permit the community of nations to meet the unprecedented challenges of the continued loss of biodiversity compounded by climate change.

Additional Information

Ozone Depletion:-

• Ozone depletion is a major environmental problem because it increases the amount of ultraviolet (UV) radiation that reaches the Earth's surface, which increases the rate of skin cancer, eye cataracts, and genetic and immune system damage.
• The Montreal Protocol,ratified in 1987, was the first of several comprehensive international agreements enacted to halt the production and use of ozone-depleting chemicals. As a result of continued international cooperation on this issue, the ozone layer is expected to recover over time.

Sustainable Development:-

• Sustainable development is the idea that human societies must live and meet their needs without compromising the ability of future generations to meet their own needs.
• Specifically, sustainable development is a way of organizing society so that it can exist in the long term.

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1. ICMSR
2. ICRIST
3. NICRA
4. CDRIS
5. MCRAI

The correct answer is NICRA

Key Points

• National Innovations in Climate Resilient Agriculture (NICRA) is a network project of the Indian Council of Agricultural Research (ICAR) launched in February 2011.
• The project aims to enhance the resilience of Indian agriculture to climate change and climate vulnerability through strategic research and technology demonstration.
• The research on adaptation and mitigation covers crops, livestock, fisheries, and natural resource management.
• The project consists of four components viz. Strategic Research. Technology Demonstration, Capacity Bolding, and Sponsored /Competitive Grants.
• The project was formally launched by the Union Minister for Agriculture & Food Processing industries on 2^nd February 2011.

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1. Methane
2. Nitrous Oxide
3. Carbon Dioxide
4. Ozone
5. Nitrogen

The correct answer is Nitrogen

Key Points

• A greenhouse gas is a gas that absorbs and emits radiant energy within the thermal infrared range, causing the greenhouse effect.
• The primary greenhouse gases in Earth's atmosphere are water vapor (H₂O), carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O), and ozone (O₃).
• Without greenhouse gases, the average temperature of Earth's surface would be about −18 °C rather than the present average of 15 °C.

Greenhouse gases

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1. Intergovernmental Panel on Climate Change
2. International Panel on Climatic Changes
3. Intergovernmental Provision on Climate Change
4. International Provision on Climate Control
5. Intergovernmental Policy on Climate Change

The correct answer isIntergovernmental Panel on Climate Change

Key Points

• IPCC is the Intergovernmental Panel on Climate Change.
• It was established in 1988 by the World Meteorological Organization and the United Nations Environment Programme.
• It is composed of 195 members.
• It provides objective and comprehensive scientific information on anthropogenic climate change, including the natural, political, and economic impacts and risks, and possible response options.

Additional InformationHeadquarters Location: Geneva, Switzerland
Founded: 1988
Parent organization: World Meteorological Organization; United Nations Environment Program
Founder: Bert Bolin

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1. Forests
2. Soils
3. Ocean
4. Animals
5. Atmosphere

The correct answer is Ocean

Key Points

• A carbon sink is any reservoir, natural or otherwise, that accumulates and stores some carbon-containing compounds.
• The main natural carbon sinks are plants, the ocean, and soil.
• Plants grab carbon dioxide from theatmosphere to use in photosynthesis; some of this carbon is transferred to soil as plants die and decompose.
• The oceans are a major carbon storage system for carbon dioxide

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Ecology Question 6

1. 1 and 2 only
2. 2 only
3. 1, 2 and 3
4. 1 and 3 only

Ecology Question 6 Detailed Solution

• Oceans cover around 70% of Earth’s surface, so most precipitation falls right back into the ocean and the cycle of evaporation and precipitation begins again.
• The presence of water vapor in the atmosphere is one of the things that makes Earth livable.
• Like carbon dioxide, water vapor traps heat in the atmosphere and helps keep surface air temperatures on Earth in a habitable range.
• Temperatures on planets without water vapor in the atmosphere, like Mars, stay as low as -100° C.
• Evaporation and precipitation are balanced over Earth's surface. In other words, if evaporation increases, precipitation also increases.

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Ecology Question 7

1. Carnivores
2. Omni-carnivores
3. Necromorphs
4. Omnivores

Ecology Question 7 Detailed Solution

The correct answer isOmnivores.

• Anomnivoreis an organism that regularly consumes a variety of material, includingplants, animals,algae, andfungi.

• They range in size from tiny insects like ants to large creatureslike people.

• Autotrophs are called producers,because they produce their own food.

• Herbivores, carnivoresand omnivores are consumers.

• Herbivores are primary consumers.

• Carnivores and omnivores are secondary consumers.

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Ecology Question 8

1. Ecosystem
2. Biodiversity
3. Environment
4. Ecology

Ecology Question 8 Detailed Solution

The correct answer isEcology.

• Ecology is the science that deals with the relationships between living organisms with their physical environment and with each other.
• The term “ecology” was coined by the German zoologist, Ernst Haeckel, in 1866 to describe the “economies” of living forms.
• Ecology can be approached from the viewpoints of

1. ​The environment and the demands it places on the organisms in it or
2. Organisms and how they adapt to their environmental conditions.

• An ecosystem consists of an assembly of mutually interacting organisms and their environment in which materials are interchanged in a largely cyclical manner.

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1. Pharmaceutical Industry
2. Biodiversity
3. International Finance
4. None of the above
5. all of the above

The correct answer isBiodiversity.

• On 29 October 2010, some 18,000 participants representing the 193 Parties to the Convention on Biological Diversity (CBD) and their partners closed the Nagoya Biodiversity Summit by adopting historic decisions that will permit the community of nations to meet the unprecedented challenges of the continued loss of biodiversity compounded by climate change.

Additional Information

Ozone Depletion:-

• Ozone depletion is a major environmental problem because it increases the amount of ultraviolet (UV) radiation that reaches Earth's surface, which increases the rate of skin cancer, eye cataracts, and genetic and immune system damage.
• The Montreal Protocol,ratified in 1987, was the first of several comprehensive international agreements enacted to halt the production and use of ozone-depleting chemicals. As a result of continued international cooperation on this issue, the ozone layer is expected to recover over time.

Sustainable Development:-

• Sustainable development is the idea that human societies must live and meet their needs without compromising the ability of future generations to meet their own needs.
• Specifically, sustainable development is a way of organizing society so that it can exist in the long term.

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1. Evapotranspiration
2. Photoperiodism
3. Eutrophication
4. Green House Effect
5. None of these

Eutrophication is the process in which a water body is rich in nutrients leads to access plant growth on the surface that lead to depletion of oxygen supply in the pond and that finally result in the death of Aquatic wildlife.

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1. 1 and 2 only
2. 2 only
3. 1, 2 and 3
4. 1 and 3 only

• Oceans cover around 70% of Earth’s surface, so most precipitation falls right back into the ocean and the cycle of evaporation and precipitation begins again.
• The presence of water vapor in the atmosphere is one of the things that makes Earth livable.
• Like carbon dioxide, water vapor traps heat in the atmosphere and helps keep surface air temperatures on Earth in a habitable range.
• Temperatures on planets without water vapor in the atmosphere, like Mars, stay as low as -100° C.
• Evaporation and precipitation are balanced over Earth's surface. In other words, if evaporation increases, precipitation also increases.

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1. A and D.
2. A, B and C.
3. B and D.
4. C and D.
5. None of these.

Silver fish- Trachea

Respiratory organ of Silver fish is known as Trachea (windpipe). Silver fish take a breath through the trachea or windpipe system.

Insects have a highly-specialized type of respiratory system called the tracheal system, which consists of a network of small tubes that carries oxygen to the entire body. The tracheal system, the most direct and efficient respiratory system in active animals, has tubes made of a polymeric material called chitin.

Scorpion- Book lung

Respiratory organs of Scorpions are known as book-lungs.

The organs are found on the ventrolateral side of each segment and are housed within special chambers, called pul­monary sacs. There are four pairs of book- lungs, one pair in each of the third, fourth, fifth and sixth mesosomatic or pre abdominal segments.

Sea squirt- Pharyngeal gills

Sea Squirt is an ascidian, which takes in food and oxygen through the gill slits that are present in the pharynx. During theirrespirationand feeding, they take in water through the incurrent (or inhalant) siphon and expel the filtered water through the excurrent (or exhalant) siphon.

Sea squirtsor Ascidians, which is their Latin name, belong to the subphylum of the Tunicata. Thetunicatesare favored as vertebrate ancestors in the long past.

Dolphin-Lungs

Fish use theirgillsto take oxygen from the water that they live in. Whales and dolphins use their lungsto breathe air like human being. That's one reason why they come to the surface of theocean.

D part is wrong so answer will be 2

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1. Carnivores
2. Omni-carnivores
3. Necromorphs
4. Omnivores

The correct answer isOmnivores.

• Anomnivoreis an organism that regularly consumes a variety of material, includingplants, animals,algae, andfungi.

• They range in size from tiny insects like ants to large creatureslike people.

• Autotrophs are called producers,because they produce their own food.

• Herbivores, carnivoresand omnivores are consumers.

• Herbivores are primary consumers.

• Carnivores and omnivores are secondary consumers.

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1. Ecosystem
2. Biodiversity
3. Environment
4. Ecology

The correct answer isEcology.

• Ecology is the science that deals with the relationships between living organisms with their physical environment and with each other.
• The term “ecology” was coined by the German zoologist, Ernst Haeckel, in 1866 to describe the “economies” of living forms.
• Ecology can be approached from the viewpoints of

1. ​The environment and the demands it places on the organisms in it or
2. Organisms and how they adapt to their environmental conditions.

• An ecosystem consists of an assembly of mutually interacting organisms and their environment in which materials are interchanged in a largely cyclical manner.

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1. ICMSR
2. ICRIST
3. NICRA
4. CDRIS
5. MCRAI

The correct answer is NICRA

Key Points

• National Innovations in Climate Resilient Agriculture (NICRA) is a network project of the Indian Council of Agricultural Research (ICAR) launched in February 2011.
• The project aims to enhance the resilience of Indian agriculture to climate change and climate vulnerability through strategic research and technology demonstration.
• The research on adaptation and mitigation covers crops, livestock, fisheries, and natural resource management.
• The project consists of four components viz. Strategic Research. Technology Demonstration, Capacity Bolding, and Sponsored /Competitive Grants.
• The project was formally launched by the Union Minister for Agriculture & Food Processing industries on 2^nd February 2011.

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Trusted by 3.6 Crore+ Students