Understanding the Nitrogen Cycle

Understanding the Nitrogen Cycle

5th Grade

11 Qs

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Understanding the Nitrogen Cycle

Understanding the Nitrogen Cycle

Assessment

Interactive Video

Biology

5th Grade

Practice Problem

Medium

Created by

Ana Vazquez

Used 2+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What percentage of the air is made up of nitrogen?

10%

78%

55%

21%

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the purpose of nitrogen-fixing bacteria?

To create a toxic environment for plants
To convert carbon dioxide into oxygen
To increase the acidity of the soil
To convert atmospheric nitrogen into a form that plants can use

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What role do decomposers play in the nitrogen cycle?

They fix nitrogen in the air

They return nitrogen to the soil

They consume nitrates

They create oxygen

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does lightning contributes to nitrogen cycle?

Increases the amount of nitrate in the soil

Lightning has no impact on the nitrogen cycle
Lightning converts nitrogen into oxygen
Lightning directly absorbs nitrogen from the atmosphere

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How does burning fossil fuels affect the nitrogen cycle?

It has no effect

It increases oxygen levels

It adds nitrous oxide to the atmosphere

It removes nitrogen from the soil

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the result of nitrogen fixing by cyanobacteria in oceans?

Decrease in aquatic life

Increase in saltwater

Provides nitrogen to aquatic animals

Removes carbon dioxide from water

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What happens when there's too much nitrogen in the soil?

It produces more oxygen

It attracts more wildlife

It turns into sand

It becomes more acidic

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