AND PLS NOTE THAT THE 3rd PICTURE THE QUESTION ARE THE WORDS IN ORANGE! :-)

1)Compression

2)Wavelength

3)Rarefaction

4)Transverse wave

Transverse wave travels through compression and Rarefaction of the medium.the medium is compressed in compression on as in

(1) and expands  in Rarefaction as in

(2)Thus this shows a transverse wave so

(3)Length one compression and Rarefaction together is wavelength of the  wave as in

(4)  is transverse wave

First blue pic answer

Explanation:

less than one you can't create energy

massxgravity x heght=weightxheight= pe

4900=490xh

h=10