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Ecosystem Services: The Benefits We Derive from Nature's Diversity

Description: Ecosystem Services: The Benefits We Derive from Nature's Diversity
Number of Questions: 15
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Tags: ecosystem services biodiversity nature's benefits
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What is the term used to describe the various benefits that humans obtain from ecosystems?

  1. Ecosystem Services

  2. Natural Resources

  3. Biodiversity Values

  4. Environmental Assets


Correct Option: A
Explanation:

Ecosystem services encompass the wide range of benefits that humans derive from the functioning of natural ecosystems.

Which of the following is NOT considered an ecosystem service?

  1. Water purification

  2. Climate regulation

  3. Food production

  4. Mineral extraction


Correct Option: D
Explanation:

Mineral extraction, while valuable, is not considered an ecosystem service as it does not directly stem from the natural functioning of ecosystems.

How do ecosystems contribute to water purification?

  1. Filtering pollutants

  2. Releasing oxygen

  3. Absorbing sunlight

  4. Preventing erosion


Correct Option: A
Explanation:

Ecosystems, particularly wetlands and forests, act as natural filters, removing pollutants and sediments from water sources.

Which ecosystem service is crucial for regulating the Earth's temperature?

  1. Carbon sequestration

  2. Water cycling

  3. Nutrient cycling

  4. Pollination


Correct Option: A
Explanation:

Carbon sequestration, primarily through photosynthesis in forests and oceans, plays a vital role in regulating the Earth's temperature by absorbing carbon dioxide from the atmosphere.

What is the primary source of food for a significant portion of the world's population?

  1. Marine ecosystems

  2. Agricultural systems

  3. Forest ecosystems

  4. Grassland ecosystems


Correct Option: B
Explanation:

Agricultural systems, supported by ecosystems, provide the majority of the food consumed by humans worldwide.

Which ecosystem service is essential for the survival of many plant species?

  1. Water purification

  2. Climate regulation

  3. Pollination

  4. Nutrient cycling


Correct Option: C
Explanation:

Pollination, facilitated by insects, birds, and other animals, is crucial for the reproduction of many plant species, ensuring the continuation of diverse ecosystems.

How do ecosystems contribute to the formation and maintenance of soil?

  1. Releasing oxygen

  2. Absorbing sunlight

  3. Preventing erosion

  4. Decomposing organic matter


Correct Option: D
Explanation:

Ecosystems, through the decomposition of organic matter by organisms like fungi and bacteria, contribute to the formation and maintenance of fertile soil.

Which ecosystem service provides a natural defense against flooding and erosion?

  1. Water purification

  2. Climate regulation

  3. Pollination

  4. Natural hazard regulation


Correct Option: D
Explanation:

Natural hazard regulation, provided by ecosystems such as wetlands and forests, helps mitigate the impacts of floods and erosion.

How do ecosystems contribute to the well-being and mental health of humans?

  1. Providing food

  2. Regulating climate

  3. Purifying water

  4. Offering recreational opportunities


Correct Option: D
Explanation:

Ecosystems, through outdoor activities like hiking, camping, and birdwatching, provide recreational opportunities that contribute to human well-being and mental health.

Which ecosystem service is crucial for maintaining the genetic diversity of plant and animal species?

  1. Water purification

  2. Climate regulation

  3. Biodiversity

  4. Pollination


Correct Option: C
Explanation:

Biodiversity, the variety of life forms within ecosystems, is essential for maintaining the genetic diversity of plant and animal species.

How do ecosystems contribute to the production of oxygen?

  1. Releasing carbon dioxide

  2. Absorbing sunlight

  3. Decomposing organic matter

  4. Photosynthesis


Correct Option: D
Explanation:

Ecosystems, particularly through photosynthesis in plants and algae, contribute to the production of oxygen, a vital gas for life on Earth.

Which ecosystem service is essential for the survival of aquatic organisms?

  1. Water purification

  2. Climate regulation

  3. Pollination

  4. Habitat provision


Correct Option: D
Explanation:

Habitat provision, offered by ecosystems like coral reefs and mangrove forests, is crucial for the survival of aquatic organisms, providing shelter, breeding grounds, and food sources.

How do ecosystems contribute to the cycling of nutrients, such as nitrogen and phosphorus?

  1. Releasing oxygen

  2. Absorbing sunlight

  3. Decomposing organic matter

  4. Nutrient cycling


Correct Option: D
Explanation:

Nutrient cycling, facilitated by ecosystems, involves the transformation and movement of nutrients like nitrogen and phosphorus, making them available for use by plants and other organisms.

Which ecosystem service is crucial for the survival of many bird species?

  1. Water purification

  2. Climate regulation

  3. Pollination

  4. Habitat provision


Correct Option: D
Explanation:

Habitat provision, offered by ecosystems like forests and wetlands, is essential for the survival of many bird species, providing nesting sites, food sources, and shelter.

How do ecosystems contribute to the regulation of pests and diseases?

  1. Releasing oxygen

  2. Absorbing sunlight

  3. Decomposing organic matter

  4. Natural pest regulation


Correct Option: D
Explanation:

Natural pest regulation, provided by ecosystems, involves the control of pest populations through natural mechanisms, such as predation and parasitism.

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