nitrogen_pollution_-_science_updates_-_science_netlinks.pdf | |
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Question 1.
For the news article, which phrase does the author use to refer to a "nitrogen footprint" that helps clarify the meaning of this term? (Points : 2)
a.) "All plants need reactive nitrogen to grow..."
b.) "...a single reactive nitrogen atom can pass from the air to the soil to the water..."
c.) "...our best hope is to figure out how to make the nitrogen in fertilizers more efficient."
d.) "...that same nitrogen atom can evaporate back into the atmosphere as part of the greenhouse gas nitrous oxide...“
Question 2.
What is the main difference between reactive nitrogen and inert nitrogen? (Points : 2)
a.) Reactive nitrogen does not exist in the air.
b.) Inert nitrogen does not change form by reacting chemically.
c.) Reactive nitrogen is toxic in all amounts.
d.) Inert nitrogen neutralizes harmful substances by bonding with them.
Question 3.
According to the news article, which human activities are the main sources of reactive nitrogen? (Select all that apply) (Points : 2)
a.) Burning of fossil fuels.
b.) Construction of cities.
c.) Mining of land.
d.) Use of agricultural fertilizers.
e.) Hydraulic fracturing of farmland.
For the news article, which phrase does the author use to refer to a "nitrogen footprint" that helps clarify the meaning of this term? (Points : 2)
a.) "All plants need reactive nitrogen to grow..."
b.) "...a single reactive nitrogen atom can pass from the air to the soil to the water..."
c.) "...our best hope is to figure out how to make the nitrogen in fertilizers more efficient."
d.) "...that same nitrogen atom can evaporate back into the atmosphere as part of the greenhouse gas nitrous oxide...“
Question 2.
What is the main difference between reactive nitrogen and inert nitrogen? (Points : 2)
a.) Reactive nitrogen does not exist in the air.
b.) Inert nitrogen does not change form by reacting chemically.
c.) Reactive nitrogen is toxic in all amounts.
d.) Inert nitrogen neutralizes harmful substances by bonding with them.
Question 3.
According to the news article, which human activities are the main sources of reactive nitrogen? (Select all that apply) (Points : 2)
a.) Burning of fossil fuels.
b.) Construction of cities.
c.) Mining of land.
d.) Use of agricultural fertilizers.
e.) Hydraulic fracturing of farmland.
Link to Nitrogen Cycle Video
http://studyjams.scholastic.com/studyjams/jams/science/ecosystems/nitrogen-cycle.htm
http://studyjams.scholastic.com/studyjams/jams/science/ecosystems/nitrogen-cycle.htm
Question 4.
Nitrogen is important to living things because plants and animals use it to make ______(Fill-in-the-Blank: 1 Word)_____. (Points : 1)
Question 5.
Weird bumps on the roots of plants are called ______(Fill-in-the-Blank: 1 Word)_____. (Points : 1)
Question 6.
Those weird bumps contain ______(Fill-in-the-Blank: 1 Word)_____, which are "VIPs" of the nitrogen cycle. (Points : 1)
Question 7.
The nitrogen cycle is an endless process where nitrogen moves back and forth from living things like plants and animals to non-living things like air, water and ______(Fill-in-the-Blank: 1 Word)____. (Points : 1)
Question 8.
There is a lot of nitrogen in the air, but most organisms cannot use it as a ______(Fill-in-the-Blank: 1 Word)____. (Points : 1)
Question 9.
Nitrogen from the atmosphere moves into the soil where it is absorbed by root nodules and transformed into ______(Fill-in-the-Blank: 1 Word)____- a toxic substance. (Points : 1)
Question 10.
Other bacteria in the soil make ______(Fill-in-the-Blank: 1 Word)____ out of ammonia. (Points : 1)
Question 11.
In the final step of nitrification, ______(Fill-in-the-Blank: 1 Word)____ are produced by a a third type of bacteria. (Points : 1)
Question 12.
______(Fill-in-the-Blank: 1 Word from Lesson 4.04)____, animals that do not eat plants, get nitrates by eating animals that eat plants. (Points : 1)
Question 13.
Special bacteria, known as ______(Fill-in-the-Blank: 1 Word from Lesson 4.04)____, change nitrates from waste and dead organisms back into nitrogen gas. (Points : 1)
Nitrogen is important to living things because plants and animals use it to make ______(Fill-in-the-Blank: 1 Word)_____. (Points : 1)
Question 5.
Weird bumps on the roots of plants are called ______(Fill-in-the-Blank: 1 Word)_____. (Points : 1)
Question 6.
Those weird bumps contain ______(Fill-in-the-Blank: 1 Word)_____, which are "VIPs" of the nitrogen cycle. (Points : 1)
Question 7.
The nitrogen cycle is an endless process where nitrogen moves back and forth from living things like plants and animals to non-living things like air, water and ______(Fill-in-the-Blank: 1 Word)____. (Points : 1)
Question 8.
There is a lot of nitrogen in the air, but most organisms cannot use it as a ______(Fill-in-the-Blank: 1 Word)____. (Points : 1)
Question 9.
Nitrogen from the atmosphere moves into the soil where it is absorbed by root nodules and transformed into ______(Fill-in-the-Blank: 1 Word)____- a toxic substance. (Points : 1)
Question 10.
Other bacteria in the soil make ______(Fill-in-the-Blank: 1 Word)____ out of ammonia. (Points : 1)
Question 11.
In the final step of nitrification, ______(Fill-in-the-Blank: 1 Word)____ are produced by a a third type of bacteria. (Points : 1)
Question 12.
______(Fill-in-the-Blank: 1 Word from Lesson 4.04)____, animals that do not eat plants, get nitrates by eating animals that eat plants. (Points : 1)
Question 13.
Special bacteria, known as ______(Fill-in-the-Blank: 1 Word from Lesson 4.04)____, change nitrates from waste and dead organisms back into nitrogen gas. (Points : 1)
http://enviroliteracy.org/article.php/479.html