BS Environmental Science 3

Question 1

What is the role of decomposers in an ecosystem?

Accepted Answer

To break down dead organic matter and recycle nutrients back into the soil

Answer

Decomposers such as bacteria and fungi break down dead organic material, returning essential nutrients to the soil for use by plants.

Question 2

What is habitat fragmentation?

Accepted Answer

The division of large habitats into smaller, isolated patches due to human activities

Answer

Habitat fragmentation occurs when development, roads, or agriculture divide continuous habitats into smaller, disconnected pieces, threatening wildlife.

Question 3

What is an invasive species?

Accepted Answer

A non-native species introduced to an area where it causes ecological or economic harm

Answer

An invasive species is one that is introduced outside its native range and outcompetes native species, disrupting ecosystems.

Question 4

What is sustainable development?

Accepted Answer

Development that meets present needs without compromising the ability of future generations to meet their own needs

Answer

Sustainable development balances economic growth, environmental protection, and social equity to ensure resources remain available for future generations.

Question 5

What is the nitrogen cycle?

Accepted Answer

The process by which nitrogen moves between the atmosphere, soil, water, and living organisms

Answer

The nitrogen cycle describes the circulation of nitrogen through various forms — from atmospheric N2 to soil nitrates to living organisms and back.

BS - Bachelor of Science Practice Test

BS - Bachelor of Science Practice Test

BS Environmental Science 3