Question 1

Why are environment and ecology closely related?

Accepted Answer

Because ecology focuses on interactions between living organisms and the environment

Answer

Because ecology helps in preserving natural habitats

Answer

Because environment and ecology have no relation

Answer

Because environment provides resources for organisms to survive

Question 2

How do environment and ecology work together to address environmental issues?

Accepted Answer

By understanding and preserving the natural world

Answer

By promoting unsustainable practices

Answer

By causing harm to living organisms

Answer

By ignoring the intricacies of ecosystems

Question 3

Which type of environment consists of non-biological, non-living things?

Accepted Answer

Physical environment

Answer

Natural environment

Answer

Artificial environment

Answer

Biotic environment

Question 4

What is the primary function of an ecosystem?

Accepted Answer

Conversion of solar energy into food energy

Answer

Growth and development of animals

Answer

Creation of abiotic components

Answer

Circulation of water in the environment

Answer

Transformation of chemical energy into solar energy

Question 5

How do abiotic components influence the biotic components within an ecosystem?

Accepted Answer

By influencing habitat suitability and the availability of resources.

Answer

By providing structural support and shelter to organisms.

Answer

By regulating the reproductive cycles of biotic organisms.

Answer

By directly competing with biotic components for resources.

Question 6

How do human activities impact ecosystem function?

Accepted Answer

By disrupting natural processes and altering habitats.

Answer

By promoting the adaptation of species to changing environmental conditions.

Answer

By reducing the spread of invasive species within ecosystems.

Answer

By facilitating the natural regeneration of degraded ecosystems.

Question 7

What is the major source of energy in an ecosystem?

Accepted Answer

Solar energy

Answer

Wind energy

Answer

Hydropower energy

Answer

Geothermal energy

Question 8

Which of the following correctly describes the significance of energy flow in an ecosystem?

Accepted Answer

Helps us understand how all creatures in an ecosystem depend on each other

Answer

It is only vital for plants to survive

Answer

Only affects humans and not other organisms

Answer

Does not play a role in the stability of an ecosystem

Question 9

Why are ecological relationships important in maintaining ecosystem stability?

Accepted Answer

They regulate energy flow and nutrient cycling.

Answer

They enhance genetic diversity within populations.

Answer

They promote competition among species, ensuring the strongest survive.

Answer

They minimize habitat availability for invasive species

Question 10

How do mutualistic relationships contribute to ecosystem health?

Accepted Answer

By facilitating nutrient exchange and resource sharing.

Answer

By enhancing the ability of organisms to survive harsh conditions.

Answer

By reducing biodiversity and simplifying food webs.

Answer

By providing multiple energy sources for consumers.

Question 11

Why is biodiversity crucial for ecosystem resilience?

Accepted Answer

It enhances ecosystem stability and adaptability to environmental changes.

Answer

It accelerates natural succession and habitat restoration.

Answer

It decreases competition among species for resources.

Answer

It simplifies food chains and reduces energy consumption.

Question 12

How do predator-prey relationships contribute to ecosystem dynamics?

Accepted Answer

By regulating the population sizes of both predator and prey species.

Answer

By increasing competition among herbivores for plant resources.

Answer

By reducing biodiversity within the ecosystem.

Answer

By promoting symbiotic interactions between species.

Question 13

What controls the movement of oxygen through the atmosphere, biosphere, and lithosphere in the oxygen cycle?

Accepted Answer

Green plants releasing oxygen during photosynthesis

Answer

Sunlight reactions with water vapor

Answer

Animals exhaling carbon dioxide

Answer

Plants and microbes assimilating sulfate

Question 14

How do trophic relationships maintain ecosystem balance?

Accepted Answer

By promoting energy transfer among different trophic levels.

Answer

By reducing the number of producer species in food chains.

Answer

By increasing competition among carnivores for prey species.

Answer

By eliminating primary consumers to reduce predation pressure.

Question 15

Why are decomposers crucial for nutrient cycling in ecosystems?

Accepted Answer

They break down organic matter and recycle nutrients back into the soil.

Answer

They maintain predator-prey relationships in aquatic ecosystems.

Answer

They provide energy directly to consumers in food webs.

Answer

They compete with producers for sunlight and nutrients.

Question 16

How do agricultural practices impact nutrient cycles in ecosystems?

Accepted Answer

By introducing excess nutrients into waterways, leading to eutrophication.

Answer

By reducing soil erosion and enhancing nutrient retention.

Answer

By promoting the efficient recycling of nutrients through organic farming methods.

Answer

By increasing biodiversity and enhancing nutrient uptake by crops.

Question 17

Why are deforestation and land clearing significant factors in nutrient cycle disruption?

Accepted Answer

They reduce soil fertility and increase nutrient leaching.

Answer

They accelerate nutrient cycling through increased plant growth.

Answer

They facilitate nutrient recycling by promoting natural decomposition processes.

Answer

They promote biodiversity and enhance nutrient uptake by remaining vegetation.

Question 18

Which of the following best describes the role of phosphorus in ecosystems?

Accepted Answer

Providing structural support in cells

Answer

Catalyzing biochemical reactions

Answer

Acting as a greenhouse gas

Answer

Regulating body temperature

Question 19

Imagine an ecosystem where synthetic fertilizers have been excessively used, causing a significant increase in nitrate levels in the soil. Evaluate the potential environmental impact of this nitrogen enrichment on the ecosystem.

Accepted Answer

Higher likelihood of eutrophication in nearby water bodies

Answer

Enhanced nitrogen-fixing capabilities of leguminous plants

Answer

Increased variety of species due to improved nutrient availability

Answer

Reduced soil erosion as nitrates stabilize soil structure

Question 20

What is the main cause of threats to species related to hunting and poaching?

Accepted Answer

Hunting and Poaching

Answer

Man and Wildlife Conflict

Answer

Global Initiatives for Biodiversity Assessment

Answer

Habitat Destruction

Question 21

Which level of biodiversity indicates the rate at which additional species are encountered as geographical replacements within a habitat type in different localities?

Accepted Answer

Beta Diversity

Answer

Alpha Diversity

Answer

Gamma Diversity

Answer

Rio-geographic Classification

Question 22

Why is biodiversity important for ecosystems?

Accepted Answer

It stabilizes ecosystems and enhances resilience to environmental

Answer

It reduces competition among species

Answer

It accelerates climate change

Answer

It limits the spread of diseases among wildlife

Question 23

You are part of a team studying the impact of climate change on coral reef biodiversity. Explain how increasing ocean temperatures and ocean acidification could affect coral reefs, and propose two measures to protect coral reef ecosystems.

Accepted Answer

Reducing carbon emissions and establishing marine protected areas

Answer

Increasing the use of chemical fertilizers and limiting marine protected areas

Answer

Enhancing coral bleaching events and increasing overfishing in the area

Answer

Promoting deforestation and creating more pollution in the ocean

Question 24

You are advising a local community on sustainable forestry practices to maintain biodiversity in a forested area. Suggest two practices that could help maintain forest biodiversity and explain how these practices benefit both wildlife and local communities

Accepted Answer

Implementing selective logging and maintaining wildlife corridors in the forest

Answer

Promoting clear-cutting and increasing the use of synthetic fertilizers in the area

Answer

Introducing invasive species and limiting conservation efforts in the area

Answer

Enhancing logging activities and decreasing wildlife population in the area

Question 25

Analyzing the impact of climate change on biodiversity, which scenario is most likely to occur due to rising temperatures?

Accepted Answer

Decreased habitat suitability for some species

Answer

Enhanced habitat availability for cold-adapted species

Answer

Increased diversity of species in ecosystems

Answer

No change in species distributions

Question 26

Which statement is true about the role of indigenous knowledge in biodiversity conservation?

Accepted Answer

Indigenous practices often contribute to sustainable resource management

Answer

Indigenous knowledge has no relevance to biodiversity conservation

Answer

Indigenous communities prioritize economic growth over conservation

Answer

Indigenous knowledge leads to extinction of species

Question 27

Which of the following statement best describes the effect of over fishing on marine biodiversity?

Accepted Answer

Loss of biodiversity and ecosystem imbalance

Answer

decrease fish populations

Answer

It doesn't have a clear effect on the marine environment.

Answer

Enhanced biodiversity due to species competition

Question 28

Which human activity directly contributes to ocean acidification?

Accepted Answer

Burning of fossil fuels

Answer

Disposal of plastic waste

Answer

Mining of minerals from the ocean floor

Answer

Overfishing of marine species

Question 29

What is a significant indirect impact of biodiversity loss on human health?

Accepted Answer

Higher rates of infectious diseases

Answer

More frequent natural disasters

Answer

Decreased availability of freshwater

Answer

Increased air pollution

Question 30

How does pollution affect marine biodiversity?

Accepted Answer

By introducing toxins and plastics

Answer

By altering water temperature

Answer

By reducing habitat availability

Answer

By promoting coral bleaching

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