20 pls
mechanical waves require a medium to transfer energy. which of the following is a mechanical wave?
a) surface waves
b) microwaves
c) light waves
d) radio waves

"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.