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Describe the formation of a waterfall

As a river moves through its upper course, it creates multiple erosional features such as waterfalls. The river moves over varying rock types, some harder and more resistant to erosion than others. The so...

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Answered by Jamie S. Geography tutor
3817 Views

What is the difference between the present perfect and the imperfect?

Present Perfect

  • Finished past action: Il a cuisiné.

  • An action which lasted a certain amount of time: Elle a étudié au lycée pendant ...

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Answered by Esther M. French tutor
1862 Views

What are the two auxiliary verbs in Italian grammar?

They are "essere" (to be) and "avere" (to have). 

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Answered by Francesco M. Italian tutor
1921 Views

What is the definition of demand?

Demand is the willingness or ability of a consumer to purchase something, at a certain price, at a certain time.

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2606 Views

how do you convert binary to a form in which you can perform subtraction?

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