What kind of water does waterfalls have

1.ledge waterfall 2.block/sheet 3.curtain 4. classical

Explanation:

1=water that is vertically over the cliff                                                                               2=Water descends from a relatively wide stream or river.                                               3= Ledge waterfalls                                                                                                           4= Ledge waterfalls where fall height is nearly equal to stream width, forming a vertical square shape.

answer is  

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to prove that the triangles are congruent using the aas congruence

answer they showed that organic molecules such as amino acids could be produced from inoragnic molecules;