Once you have identified if it is a modification, in one sentence, explain WHY it's a modification, or why IT IS NOT .
their are 4 pictures I really need help and I would really appreciate this thank youuu :)

Which continents lie only in the northern hemisphere

What forms of energy are involved when snow on a mountain breaks loose, resulting in an avalanche? during an avalanche, the( 1 ) energy of the snow on the mountain is converted into ( 2 ) energy as the snow cascades down. ( 1 ) a. elastic b. kinetic c. potential d. radiant ( 2 ) a. chemical b. kinetic c. nuclear d. potential

Which of the following terms describes the layers of air surrounding the earth ?