Paragraph: (Science-textbook/science-g4-111.txt)
Sent 1: When land is cleared, habitats are lost.
Sent 2: It may be cleared for agriculture.
Sent 3: It may also be used for building new homes or businesses.
Sent 4: Within the past 100 years, the amount of land used for agriculture has almost doubled.
Sent 5: Land used for grazing cattle has more than doubled.
Sent 6: Many wetlands have also been lost to agriculture.
Sent 7: The U.S. has lost almost all the natural tall-grass prairies.
Sent 8: Thee areas of tall thick grass have virtually disappeared.
Sent 9: These areas of land had thick fertile soil.
Sent 10: Their grasses had very deep root systems.
Sent 11: These deep and thick roots reduced the amount of soil erosion.
Sent 12: They also were home to many plants and animals.
Sent 13: Prairies were wonderful places.
Sent 14: They were home to colorful flowers, prairie dogs, and herds of bison.

Question: In the last 100 years, how much has the agricultural clearing grown and how is it used? (true/0)

Doubled
Tripled
Selling land
Grazing cattle
It has tripled, and used for cattle
In the last 100 years, the agricultural clearing has doubled and is used for cattle grazing
Feeding humans has almost doubled; it is used for agricultural purposes

Question: What opportunities come from the loss of habitat due to clearing land? (true/1)

More humans can prance around
Land for agriculture
It may then be used for agriculture, homes or businesses
We have more room for cattle to graze
Land for prairie dogs

Question: Once home to colorful flowers, prairie dogs, and herds of bison, what types of places are cleared for new homes and businesses? (true/2)

Flatlands
Wetlands
Tall grass prairies
Prairies

Question: How can habitats be lost? (false/3)

Question: What are the reasons land is cleared? (true/4)

Question: Why do we clear land? (false/5)

Question: What types of land have been lost to agriculture? (true/6)

Question: What lived on prairies? (true/7)

Question: Why may land be cleared? (true/8)

Question: What types of animals did prairies contain? (true/9)

Question: What are the advantages of tall grass prairies? (true/10)

Buildings construction
Make the land look nice
Less erosion
Help prevent erosion
A place for animals to graze
They have thick fertile soil with deep rooted grass that helps to prevent soil erosion and are home to a varity of animals and plants
Home to many plants and animals
Fertile soil

Question: Within the last 100 years, what has land clearing done for agriculture and cattle? (true/11)

The amount of land used for both has almost doubled in size
It has tripled the amount of land used
It has double the amount of land used
It has decreased
It has grown

Question: What reduced the amount of soil erosion in grass? (true/12)