SCIENCE-EARTH S ECOSYSTEMS
مناسب جهت تقویت زبان انگلیسی۱٫ What happens when one part of
an ecosystem changes?
۲٫ Why can’t trees grow in
some grasslands?
۳٫ Lemmings are able to live on
the tundra. Why?
۴٫ You have read
about the importance of prairie dogs
in their habitat. Write to explain the
things that prairie dogs do to help
keep other living things alive.
۵٫ Main Idea and Details A tropical
forest is one kind of ecosystem. List
some details from the book about
this forest….
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