Which of these are fresh water ecosystems? Check all that apply a. Marshes and swamps
b. Coral reefs
c. Lakes and ponds.
d. Estuaries
e. Rivers and streams

The causes of the failure of the league of nations

In wegener’s evidence for continental drift, continents were proposed to fit together, such as the east coast of south america with the west coast of europe. east coast of africa. west coast of greenland. lower west coast of africa.

Why is terracing used in southeast asian agriculture?