ch 3 env science dsst

ch 3 env science dsst

Assessment

Flashcard

Science

12th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What does NEPA stand for and what is its purpose?

Back

NEPA stands for the National Environmental Policy Act. Its purpose is to require federal agencies to assess the environmental effects of their proposed actions before making decisions.

2.

FLASHCARD QUESTION

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and making them available for producers.

3.

FLASHCARD QUESTION

Front

What is the nitrogen cycle and the role of nitrogen-fixing bacteria?

Back

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms. Nitrogen-fixing bacteria convert nitrogen gas from the atmosphere into ammonia, which can then be used by plants.

4.

FLASHCARD QUESTION

Front

What is aerobic respiration?

Back

Aerobic respiration is the process by which organic molecules combine with oxygen to produce carbon dioxide, water, and energy.

5.

FLASHCARD QUESTION

Front

Which organisms occupy the lowest trophic level in an ecosystem?

Back

Producers, such as plants, occupy the lowest trophic level as they convert sunlight into energy through photosynthesis.

6.

FLASHCARD QUESTION

Front

Define trophic levels in an ecosystem.

Back

Trophic levels are the hierarchical levels in an ecosystem, defined by how energy and nutrients flow through the food chain, from producers to various levels of consumers.

7.

FLASHCARD QUESTION

Front

What is the primary function of producers in an ecosystem?

Back

Producers, such as plants and algae, convert solar energy into chemical energy through photosynthesis, forming the base of the food chain.

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