When moving East of the Greenwich, would you add or subtract time?

(Hope that makes sense)

How would i answer this in a exam. orange - sea temperature is over 27 red arrows - tropical storm routes

These factors threaten north americas ecosystems

[ou.01]which of these is the most likely use of an electromagnetic wave which has wavelength shorter than microwaves but longer than visible light? o heat food safely o neat food safely o take images of bones and teeth o transmit radio and cellular phone signals o take images of bones and teeth o transmit radio and cellular phone signals o detect the location of objects which emit heat