Page 108 - Key to Social Studies 2
P. 108
Let’s Think Deeper!
How does losing animals or plants a ect
humans?
Having fewer plants means that humans will
have less oxygen and more carbon dioxide, so
people won’t be able to breathe.
Having many kinds of animals keeps our Earth
healthier. When one kind of animal disappears,
it may cause problems for humans, who
depend on animals for food, milk, or protection.
Animals might start ghting over food and
plants to eat as well.
Checkpoint Tick the correct boxes.
Who is endangering animals and plants?ho is endangering animals and plants?
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