Atomic disguise makes helium look like hydrogen. ... A helium atom consists of a nucleus containing two positively charged protons and two neutrons, encircled by two orbiting electrons which carry a negative charge. A hydrogen atom has just one proton and one electron
It’s the crest, the crest is the top part of the wave and the trough is the bottom so they correspond
It brings cold water from the bottom of the ocean.
I think it might be D but I am not sure