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The Importance of Trees Answers

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3

Which of the following statements about the interactions between insects and trees is not true?

A
For some species of trees, insects are required for pollination.
B
Trees provide necessary shelter for a variety of insect species.
C
Insects have predatory relationships with trees, rather than mutually beneficial ones.
D
Insects can cause loss of tree productivity and even death.
4

Which of the following is the best reason that trees are important for overall air quality?

A
Trees help provide a balance in components of the atmosphere.
B
Trees create shade, cooling the air.
C
Trees release moisture into the air, cooling the environment.
D
Trees help maintain overall water quality.
6

Which best explains the relationship between flying dragons and trees?

A
Flying dragons rely on trees for a food source, but not for shelter.
B
Flying dragons live exclusively in trees except to lay eggs.
C
Flying dragons burrow into the tree without causing damage to the tree.
D
Flying dragons use trees for reproduction, but get their food and shelter on the ground.
7

Why are environmentalists concerned about the introduction of genetically engineered trees?

A
Genetically engineered trees are not regulated.
B
Genetically engineered trees could have unexpected interactions with organisms of natural ecosystems.
C
Genetically engineered trees decrease the biodiversity of natural ecosystems.
D
All of the above

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