[bai-giai-den-roi-cham-com]-Luyen-doc-reading-voi-bo-giao-trinh-oxford-level-5

a.a,OOrlill.
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Animals that migrate move through different habitats
and they need different types of food in different places.
Because of this, they are in danger from things that
change in the world around them.
Problems for Mi rant
Many migrants, like tuna, cod, birds, and sea turtles,
are in danger from too much fishing or hunting.
Roads, power lines, and wind turbines stop other
animals from migrating. Also, people damage the
habitats of many migrants when they cut down trees,
take out ponds, build dams across rivers, or build
fences around land. Pollution damages habitats, too.
The erma e
Earth is getting too warm because our vehicles,
factories, and power stations are making
too many gases like carbon dioxide.
The climate is changing, so there
are more storms, and deserts are
getting bigger. There is less ice
on polar oceans, and ocean
currents are changing.
Journeys are now more
dangerous for migrants.
It's also more difficult
for animals to reach the
right place at the right
time for feeding and
breeding. Scientists
think that many animal
species will stop
migrating or they will
migrate to new places
because the climate is
changing.
Q
~ Many birds that migrate north for summer, like
the willow warbler, are now staying there for longer
than usual. Some birds are not migrating back south.